PUBLICATIONS

1. Gellert E. and Summons R.E., 1969. Alkaloids of the genus Cinnamomum. Isolation, structure and synthesis of cinnamolaurine. Tetrahedron Letters 58, 5055-8.

2. Gellert E. and Summons R.E., 1970. Alkaloids of the genus Cinnamomum II. The alkaloids of Cinnamomum Sp. T.G.H. 13077. Australian Journal of Chemistry 23, 2095-9.

3. Gellert E., Rudzats R., Summons R.E., and Worth B.R., 1971. Diphenylpiperidines: synthesis and properties of some methoxy substituted 3,4-diphenylpiperidine derivatives. Australian Journal of Chemistry 24, 843-50.

4. Hart N.K., Johns S.R., Lamberton J.A., Suares H., and Summons R.E., 1971. The identification of the major alkaloid of Strychnos ledermanii as diaboline. Australian Journal of Chemistry 24, 1741.

5. Ellis J., Gellert E., and Summons R.E., 1972. Alkaloids of the genus Cinnamomum III. Identification of reticuline as the major bark alkaloid of Cinnamomum laubattii. Australian Journal of Chemistry 25, 1829.

6. Summons R.E., Ellis J. and Gellert E., 1972. Constituents of Marsdenia rostrata (Ascepiadaceae). Phytochemistry 11, 3335-9.

7. Ellis J., Gellert E., Rudzats R. and Summons R.E., 1973. The alkaloids of Mitrella kentii (Family Annonaceae). Australian Journal of Chemistry 25, 2735-6

8. Solomon M.D., Summons R.E., Pereira W. and Duffield A.M., 1973. A study of the electron impact-promoted fragmentation of promazine sulphoxide and promazine using specifically deuterated analogues. Australian Journal of Chemistry 26, 325-32.

9. Gellert E. and Summons R.E., 1973. Steroidal Alkaloids of Marsdenia Rostrata. II. The isolation and structure of a new alkaloid, Rostratamine. Australian Journal of Chemistry 26, 1835-6.

10. Pereira W., Bacon V.A., Hoyano Y., Summons R.E. and Duffield A.M., 1973. The determination of phenylalanine in serum by mass fragmentograhy. Clinical Biochemistry 6, 300-6.

11. Pereira W.E, Hoyano Y., Summons R., Bacon V.A. and Duffield A.M., 1973. Chlorination studies. II. The reaction of aqueous hypochlorous acid with -amino acids and dipeptides. Biochimica et Biophysica Acta, 313, 170-80.

12. Pereira W.E., Hoyano Y., Reynolds W.E., Summons R.E. and Duffield A.M., 1973. The simultaneous quantitation of ten amino acids in soil extracts by mass fragmentography. Analytical Biochemistry 55, 236-44.

13. Hoyano Y., Bacon V., Summons R.E., Pereira W.E., Halpern B. and Duffield A.M., 1973. Chlorination studies. IV. The reaction of aqueous hypochlorous acid with pyrimidine and purine Bases, Biochemical and Biophysical Research Communications 53, 1195-9.

14. Pereira W.E., Summons R.E., Rindfleisch T.C. and Duffield A.M., 1974. The determination of ethanol in blood and urine by mass fragmentography. Clinica Chimica Acta 51, 109-12.

15. Gellert E. and Summons R.E., 1974. Steroidal alkaloids of Marsdenia rostrata. III. Rostratamine and dihydrorostratamine. Australian Journal of Chemistry 27, 919-21.

16. Hart N.K., Johns S.R., Lamberton J. A. and Summons R.E., 1974. Psychotridine, a C55H62N10 Alkaloid from Psychotria beccarioides (Rubiaceae). Australian Journal of Chemistry 27, 919.

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17. Summons R.E., Pereira W.E., Reynolds W.E., Rindfleisch T.C. and Duffield A.M., 1974. An analysis of twelve amino acids in biological fluids by mass fragmentography. Analytical Chemistry 46, 582-7.

18. Pereira W.E., Summons R.E., Rindfleisch T.C., Duffield A.M., Zeitman B. and Lawless J.G., 1975. Stable isotope mass fragmentography, Quantitation and hydrogen-deuterium exchange studies of eight Murchison Meteorite amino acids. Geochimica et Cosmochimica Acta 39, 163-172.

19. Pereira W.E., Summons R.E., Reynolds W.E., Rindfleisch T.C. and Duffield A.M., 1973. The quantitation of -aminoisobutyric acid in urine by mass fragmentography. Climica Chimica Acta 49, 401-6.

20. Lawless J.G., Zeitman B., Pereira W.E., Summons R.E. and Duffield A.M., 1974. Dicarboxylic acids in the Murchison Mete0rite. Nature 251, 40-2.

21. Fernbach S.A., Summons R.E., Pereira W.E. and Duffield A.M., 1975. Metabolic studies of transient tyrosinemia in premature infants. Pediatric Research 9, 172-6.

22. Parker C.W., Letham D.S., Wilson M.M., Jenkins I.D., MacLeod J.K. and Summons R.E., 1975. The identity of two new cytokinin metabolites. Annals of Botany 39, 375-6.

23. Cowley D.E., Jenkins I.D., MacLeod J.K., Summons R.E., Letham D.S., Wilson M.M. and Parker C.W., 1975. Structure and synthesis of unusual cytokinin metabolites. Tetrahedron Letters 1015-8.

24. Letham D.S., Wilson M.M., Parker C.W., Jenkins I.D., MacLeod J.K. and Summons R.E., 1975. Regulators of cell division in plant tissue XXIV. The identity of an unusual metabolite of 6-benzylaminopurine. Biochimica et Biophysica Acta 399, 61.

25. MacLeod J.K., Summons R.E., Parker C.W. and Letham D.S., 1975. Lupinic acid, a purinyl amino acid and a novel metabolite of zeatin. Chemical Communications 41, 809-10.

26. MacLeod J.K., Summons R.E. and Letham D.S., 1976. Mass Spectrometry of cytokinin metabolites. Journal of Organic Chemistry 41, 3959-67.

27. Letham D.S., Parker C.W., Duke C.C., Summons R.E. and MacLeod J.K., 1977. O-glucosylzeatin and related compounds - A new group of cytokinin metabolites. Annals of Botany 41, 261.

28. Truscott R.J.W., Burke D.G., Korth J., Halpern B. and Summons R.E., 1978. Simultaneous determination of diphenylhydantion, mephobarbital, carbamazepine, phenobarbital and primidone in serum using direct chemical ionisation mass spectrometry. Biomedical Mass Spectrometry 5, 477-82.

29. Summons R.E., MacLeod J.K., Parker C.W. and Letham D.S., 1977. The occurrence of raphanatin as an endogeneous cytokinin in radish seed. Identification and quantitation by GC-MS analysis using deuterium labelled standards. FEBS Letters 82, 211-4.

30. Oelrichs P.B., Vallely P.J., MacLeod J.K., Cable J., Kiely D.E. and Summons R.E., 1977. Lophyrotomin, a new cytotoxic octapeptide from larvae of the sawfly, Lophyrotoma interrupta. LLoydia 40, 209-214.

31. Liepa A.J. and Summons R.E., 1977. An improved phenanthrene synthesis: A simple route to (±) tylophorine. Chemical Communications 826-7.

32. Duke C.C., MacLeod J.K., Summons R.E., Letham D.S. and Parker C.W., 1978, The structure and synthesis of cytokinin metabolites II. Lupinic acid and O--D-glucopyranosyl zeatin from Lupinus augustifolius. Australian Journal of Chemistry 31, 1291-301.

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33. Eichholzer , J.V. Letham D.S., MacLeod J.K. and Summons R.E., 1978. Rearrangement of the 3--D-glucoside of the cytokinin 6-benzylamino purine. Australian Journal of Chemistry 31, 893.

34. Letham D.S., Summons R.E., Entsch B., Gollnow B.I., Parker C.W. and MacLeod J.K., 1978. Glucosylation of cytokinin analogues. Phytochemistry 17, 2053.

35. Parker C.W., Letham D.S., Summons R.E., Gollnow B.I., Duke C.C. and MacLeod J.K., 1978. Metabolism of Zeatin by Lupin Seedlings. Planta 142, 239.

36. Oelrichs P.B., Vallely P.J., MacLeod J.K., Cable J., Kiely D.E. and Summons R.E., 1977. Lophyrotomin, a new toxic octapeptide from the larvae of sawfly, Lophyrotoma interrupta. Lloydia 40, 209-14.

37. Letham D.S., Summons R.E., Parker C.W. and MacLeod J.K., 1979. Regulators of cell division in plant tissues. XXVII. Identification of an amino-acid conjugate of 6-benzylaminopurine formed in Phaseolus vulgaris seedlings. Planta 146, 71-4.

38. Summons R.E., Duke C.C., Eichholzer J.V., Entsch B., Letham D.S., MacLeod J.K. and Parker C.W., 1979. Mass spectrometric analysis of cytokinins in plant tissues. II. Quantitation of cytokinins in Zea mays kernels using deuterium labelled standards. Biomedical Mass Spectrometry 6, 407.

39. Duke C.C., Letham D.S., Parker C.W., MacLeod J.K. and Summons R.E., 1979. The complex of O-glucosylzeatin derivatives formed in Populus species. Phytochemistry 18, 819-24.

40. Takabe T., Osmond C.B., Summons R.E. and Akazawa T., 1979. Effects of oxygen on photosynthesis and biosynthesis of glycollate in photoheterotrophically grown cells of Rhodospirillum rubrum. Plant and Cell Physiology 20, 233-41.

41. Summons R.E., Entsch B., Letham D.S., Gollnow B.I. and MacLeod J.K., 1980. Regulators of cell division in plant tissues XXVIII. Metabolites of zeatin in sweet corn kernels. Planta 147, 422-34.

42. Summons R.E., Entsch B., Parker C.W. and Letham D.S., 1979. Mass spectrometric analysis of cytokinins in plant tissues III. Quantitation of the cytokinin glycoside complex of lupin pods by stable isotope dilution. FEBS Letters 107, 21-.

43. Entsch B., Parker C.W., Letham D.S. and Summons R.E., 1979. Preparation and characterisation, using high-performance liquid chromatography, of an enzyme forming glucosides of cytokinins. Biochimica et Biophysica Acta 570, 124.

44. Entsch B., Letham D.S., Parker C.W., Summons R.E. and Gollnow B.I., 1980. Metabolites of Cytokinins. Proceedings in Life Sciences. Plant Growth Regulations (Proceedings of the 10th International Conference on Plant Growth Substances. Madison July 1979. A. Frigerio & M. McCamish (Eds.), Elsevier, p.7.

45. Duke C.C., Entsch B., Letham D.S., MacLeod J.K., Parker C.W. and Summons R.E., 1980. MS and GC-MS Studies of Cytokinin Metabolism. Recent Developments in Mass Spectrometry in Biochemistry and Medicine (6th International Symposium on Mass Spectrometry in Biochemistry), Plenum Press, p.109.

46. Johnson L.A., MacLeod J.K., Summons R.E. and Hunt N., 1980. Design of a stable isotope dilution gas chromatrograph-mass spectrometric assay for CAMP. Comparison with standard protein binding and radioimmunoassay methods. Analytical Biochemistry 106, 285-90.

47. Summons R.E. and Osmond C.B., 1981. Nitrogen assimilation in the symbiotic marine alga Gymnodinium Microadriaticum. Direct analysis of 15N incorporation by GC-MS methods. Phytochemistry 20, 575-8.

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48. Benson A.A., Cooney R.V. and Summons R.E., 1980. Arsenic metabolism - A way of life in the sea. Proceedings of 3rd Microelement Symposium (As & Ni), M. Anke, H.J. Schneider, CHR. Brucker (Eds.), p.139.

49. Benson A.A. and Summons R.E., 1981. Arsenic accumulation in Great Barrier Reef invertebrates. Science 211, 482-3.

50. Summons R.E., 1981. Occurence, structure and synthesis of 3-(N-methylamino) glutaric acid, an amino acid from Prochloron didemni. Phytochemistry 20, 1125.

51. Summons R.E., Letham D.S., Parker C.W., Entsch B and Gollnow B.I., 1981. Cytokinin translocation and metabolism in species of the Leguminoseae : Studies in relation to shoot and nodule development. Metabolisme et- les Activites Moleculaires des Cytokinines (Proceedings of an International Symposium on Cytokinin Metabolism, C.N.R.S., Gif-sur-Yvette, September 1980). J.Guern and C. Peaud-Lenoel (Eds.), C.N.R.S., 1981.

52. Popp M., Osmond C.B. and Summons R.E., 1982. Pathway of malic acid synthesis in response to ion uptake in wheat and lupin roots : Evidence from fixation of 13C and 14C. Plant Physiology 69, 1289.

53. Summons R.E., Woolias M. and Wild S.B., 1982. Synthesis of -trimethylarsoniumlactate. Phosphorous and Sulfur 13, 133.

54. Badenoch-Jones J., Summons R.E., Djordjevic, Shine J., Letham D.S. and Rolfe B.G., 1982. Mass spectrometric quantification of indole-3-acetic Acid (IAA) in culture supernatants of Rhizobium strains : Studies in relation to root hair curling and nodule initiation. Applied and Environmental Microbiology 44, 275.

55. Badenoch-Jones J., Summons R.E., Entsch B., Rolfe B.G., Parker C.W. and Letham D.S., 1982. Mass spectrometric identification of indole compounds produced by Rhizobium strains. Biomedical Mass Spectrometry 9, 429.

56. Woo K.C., Morot-Gaudry J.F., Summons R.E. and Osmond C.B., 1982. Evidence for the glutamine sythetase/glutamate synthase pathway during the photorespiratory nitrogen cycle in spinach leaves. Plant Physiology 70, 1514.

57. Summons R.E., Palni L.M.S. and Letham D.S.,1982. Mass spectrometric analysis of cytokinins in plant tissues. IV. Determination of intact zeatin nucleotide by direct chemical ionisation mass spectrometry. FEBS Letters 151, 122.

58. Palni L.M.S., Summons R.E. and Letham D.S., 1983. Mass spectrometric analysis of cytokinins in plant tissues. V. Identification of the cytokinin complex of Datura innoxia crown-gall tissue. Plant Physiology 72, 858-863.

59. Tsui. C, Shoa L.M., Wang C.M., Tao G.-Q., Letham D.S., Parker C.W., Summons R.E. and Hocart C.H., 1983. Identification of a cytokinin in water chestnuts (Corms of Eleocharis ). Plant Science Letters 32, 225.

60. Badenoch-Jones J., Summons R.E and Letham D.S., 1983. Synthesis of (2H5) indole-3-pyruvic acid. Journal of Labelled Compounds and Radiopharmeceuticals 20, 1325.

61. Tao G.-Q., Letham D.S., Palni L.M.S. and Summons R.E., 1983. Cytokinin Biochemistry in Relation to Leaf Senescence. I. The Metabolism of 6-Benzylaminopurine and Zeatin in Oat leaf Segments. Journal of Plant Growth Regulation 2, 89-102.

62. Popp M. and Summons R.E., 1983. Phosphoenolyruvate carboxylase and amino acid metabolism in roots. Physiologie Vegetale 21, 1083-89.

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63. Holtum J.A.M., Summons R.E., Comins H. and O'Leary M.,1984. In vivo activities of carbonic anhydrase and PEP carboxylase. In: Advances in Photosynthesis Research ( Sybesma C. Ed.) 3, 545-48.

64. Holtum J.A.M., Summons R.E., Roeske C., Comins H. and O'Leary M.,1984. Oxygen18 incorporation into malic acid during nocturnal carbon dioxide fixation in crassulacean acid metabolism in plants - A new approach to estimating in vivo carbonic anhydrase activity. Journal of Biological Chemistry 259, 6870-81.

65. Badenoch-Jones J., Summons R.E., Rolfe B.G. and Letham D.S., 1984. Phytohormones, Rhizobium Mutants and Nodulation in Legumes, IV. Auxin Metabolites in Pea Root Nodules. Journal of Plant Growth Regulation 3, 23-39.

66. Summons R.E., Boag S. and Osmond C.B., 1986. The effect of ammonium on photosynthesis and the pathway of ammonium assimilation in Gymnodinium microadriaticum in vitro and in symbiosis with tridacnid clams and corals. Proceedings of the Royal Society (B) 227, 147-59.

67. Summons R.E. and Powell T.G., 1986. Chlorobiaceae in Palaeozoic seas - Combined evidence from biological markers, isotopes and geology. Nature 319, 763-5.

68. Jackson M.J., Powell T.G., Summons R.E. and Sweet I.P., 1986. Hydrocarbon shows and petroleum source rocks in sediments as old as 1.7 x 109 years. Nature 322, 727.

69. Summons R.E. and Powell T.G., 1987. Identification of aryl isoprenoids in source rocks and crude oils : Biological markers for the green sulphur bacteria. Geochimica et Cosmochimica Acta 51, 557-566. (GS Best Paper Award)

70. Palni L.M.S. and Summons R.E., 1987. Indole-3-acetic acid determination in cultured crown-gall and genetic tumour tissues by gas chromatography-mass spectrometry. Journal of Plant Growth Regulation 5, 51-57.

71. Summons R.E., 1987. Branched alkanes from ancient and modern sediments: isomer discrimination by GC/MS with multiple reaction monitoring. Organic Geochemistry 4, 281-290.

72. Hoffmann C.F., Foster C.B., Powell T.G. and Summons R.E., 1987. Hydrocarbon biomarkers from Ordovician sediments and fossil cells of the alga Gloeocapsomorpha prisca Zalessky 1917. Geochimica et Cosmochimica Acta 51, 2681-2697

73. Summons R.E., Volkman J.K. and Boreham C.J., 1987. Dinosterane and other steroidal hydrocarbons of dinoflagellate origin in sediments and petroleum. Geochimica et Cosmochimica Acta 51, 3075-3082.

74. Kingston E.E., Eichholzer J.V., MacLeod J.K. and Summons R.E., 1988. A -hydrogen rearrangement in the mass spectra of di-ortho substituted alkylbenzenes. Organic Mass Spectrometry 23, 42-47.

75. Hoffmann C.F., Henley R.W., Higgins N.C., Solomon M. and Summons R.E., 1988. Biogenic hydrocarbons in fluid inclusions from the Aberfoyle tin-tungsten deposit, Tasmania. Chemical Geology 70, 287-299.

76. Summons R.E., Powell T.G. and Boreham C.J., 1988. Petroleum geology and geochemistry of the Middle Proterozoic McArthur Basin, Northern Australia : III. Composition of extractable hydrocarbons. Geochimica et Cosmochimica Acta 52, 1747-1763.

77. Summons R.E., Brassell S.C., Eglinton G., Evans E., Horodyski R.J., Robinson N. and Ward D.M., 1988. Distinctive hydrocarbon biomarkers from fossiliferous sediment of the late Proterozoic Walcott Member, Chuar Group, Grand Canyon, Arizona. Geochimica et Cosmochimica Acta 52, 2625-2637.

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78. Summons R.E. and Capon R.J., 1988. Fossil steranes with unprecedented methylation in ring-A. Geochimica et Cosmochimica Acta 52, 2733-2736.

79. Volkman J.K.,Burger-Wiersma T., Nichols P.D. and Summons R.E., 1988. Lipids and chemotaxonomy of Prochlorothrix hollandica, a planktonic prokaryote containing chlorophylls a and b. Journal of Phycology 24, 554-559.

80. Osmond C.B., Holtum J.A.M., O'Leary M.H., Roeske C., Wong C., Summons R.E., and Avadhani P.N., 1988. Regulation of malic acid metabolism in Crassulacean-acid-metabolism plants in the dark and light: In-vivo evidence from 13C-labeling patterns after 13CO2 fixation. Planta 75, 184-192.

81. Hocart C., Badenoch-Jones J., Parker C.W., Letham D.S. and Summons R.E., 1988. Cytokinins of dry Zea mays seed: quantification by radioimmunoassay and gas chromatography-mass spectrometry. Journal of Plant Growth Regulation 7, 179-196.

82. Summons R. E., 1988. Biomarkers: Molecular Fossils, In: Molecular Evolution and the Fossil Record (ed. Broadhead T.W.). The Paleontological Society, Short Courses in Paleontology, 1988, #1, 98-130.

83. Summons R. E., 1989. Chemical fossils: Australian biomarker research. Chemistry in Australia 56, 70-73.

84. Palmisano A.C., Summons R.E., Cronin S.J. and Des Marais D.J.,1989. Lipophilic pigments from cyanobacterial (blue-green algal) and diatom mats in Hamelin Pool, Shark Bay, Western Australia. Journal of Phycology 25, 655-661.

85. Powell T.G., Boreham C.J., McKirdy D.M., Michaelsen B.H. and Summons R.E., 1989. Petroleum geochemistry of the Murta Member (Mooga Formation) and associated oils, Eromanga Basin, Australia. Australian Petroleum Explorationists Association Journal 29, 114-129.

86. Nandi S.K., Letham D.S., Palni L.M.S., Wong O.C. and Summons R.E., 1989. 6-Benzylaminopurine and its glycosides as naturally occurring cytokinins. Plant Science 61, 189-196.

87. Foster C.B., Reed J., Wicander R. and Summons R.E., 1990. Anatomy of an Ordovician oil-prone maceral: Gloeocapsomorpha prisca Zalessky 1917. Proceedings of the Macerals '89 Symposium (eds. Thomas C.G. and Strachan M.G.) CSIRO Division of Coal Technology, North Ryde, NSW, Part 16, 1-9.

88. Summons R.E. and Powell T.G., 1990. Petroleum source rocks of the Amadeus Basin. In: Geological and geophysical studies in the Amadeus Basin, Central Australia. (eds. Korsch R.J and Kennard J.M.) Bureau Mineral Resources Bulletin 236, pp. 511-524.

89. Summons R.E. and Jahnke L.L., 1990. Identification of the methylhopanes in sediments and petroleum. Geochimica et Cosmochimica Acta 54, 247-251

90. Summons R.E. and Walter M.R., 1990. Molecular fossils and microfossils of prokaryotes and protists from Proterozoic sediments. American Journal of Science 290-A, 212-244.

91. Tao G.-Q., Letham D.S., Hocart C.H. and Summons R.E., 1991. Inhibitors of cytokinin metabolism. III. The inhibition of Cytokinin N-Glucosylation in radish cotyledons. Journal of Plant Growth Regulation 10, 179-185.

92. Summons R.E. and Capon R.J., 1991. Botryococcenone, an oxygenated botryococcene from Botryococcus braunii. Australian Journal of Chemistry 44, 313-322.

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93. Pratt L.M., Summons R.E. and Hieshima G.B., 1991. Sterane and triterpane biomarkers in Precambrian Nonesuch Formation, US Midcontinent Rift. Geochimica et Cosmochimica Acta 55, 911-916.

94. Summons R.E. and Capon R.J., 1991. Identification and significance of 3-ethyl steranes in sediments and petroleum. Geochimica et Cosmochimica Acta 55, 2391-2395.

95. Summons R.E. and Jahnke L.L., 1992. Hopenes and hopanes methylated in ring-A: correlation of the hopanoids of extant methylotrophic bacteria with their fossil analogues. In: Biomarkers in Sediments and Petroleum (eds. Moldowan J.M. , Albrecht P. and Philp R. P.), Prentice Hall, New Jersey, pp.182-200.

96. Hayes J.M., Summons R.E., Strauss H., Des Marais D.J. and Lambert I.B., 1992. Proterozoic biogeochemistry. In: The Proterozoic Biosphere: A Multidisciplinary Study. (eds. Schopf J.W. and Klein C.), Cambridge University Press, pp. 81-133.

97. Des Marais D.J., Bauld J., Palmisano A.C., Pierson B., Summons R.E. and Ward D.M., 1992. The biogeochemistry of carbon in modern microbial mats. In: The Proterozoic Biosphere: A Multidisciplinary Study. (eds. Schopf J.W. and Klein C.), Cambridge University Press, pp. 245-341.

98. Strauss H., Des Marais D.J., Hayes J.M., Lambert I.B. and Summons R.E., 1992. Procedures for Whole Rock and Kerogen Analysis. In: The Proterozoic Biosphere: A Multidisciplinary Study. (eds. Schopf J.W. and Klein C.), Cambridge University Press, pp. 669-707.

99. Summons R.E. and Strauss H., 1992. Procedures for analysis of extractable organic matter. In: The Proterozoic Biosphere: A Multidisciplinary Study. (eds. Schopf J.W. and Klein C.), Cambridge University Press, pp. 799-809.

100. Summons R.E. and Strauss H., 1992. Composition of extractable organic matter. In: The Proterozoic Biosphere: A Multidisciplinary Study. (eds. Schopf J.W. and Klein C.), Cambridge University Press, pp. 811-817.

101. Strauss H., Des Marais D.J., Hayes J.M. and Summons R.E., 1992. Proterozoic organic carbon-its preservation and isotopic record. In: Early evolution and mineral and energy resources (eds. Schidlowski M., Golubic S., Kimberley M.M., McKirdy D.M. and Trudinger P.A.). Proceedings of IGCP Project 157, Maria Laach, 1988. Springer Verlag, Berlin. pp. 203-11.

102. Summons R.E. and Powell T.G., 1992. Hydrocarbon composition of the Late Proterozoic oils of the Siberian Platform: Implications for the depositional environment of the source rocks. In: Early evolution and mineral and energy resources (eds. Schidlowski M., Golubic S., Kimberley M.M., McKirdy D.M. and Trudinger P.A.). Proceedings of IGCP Project 157, Maria Laach, 1988. Springer Verlag, Berlin. pp. 296-307.

103. Summons R.E., Thomas J., Maxwell J.R. and Boreham C.J., 1992. Secular and environmental constraints on the distribution of dinosterane in sediments. Geochimica et Cosmochimica Acta 56, 2437-2444.

104. Volkman J.K., O'Leary T., Summons R.E. and Bendall M.R., 1992. Biomarker analysis of coastal bitumens from Tasmania, Australia. Organic Geochemistry 18, 669-692.

105. Heggie D., Boreham C.J. and Summons R.E., 1992. Biomarker and pyrolysis geochemistry of organic matter from Argo and Gascoyne Abyssal Plain sediments, northern Indian Ocean. Proc. ODP, Sci Results, 123: College Station, TX (Ocean Drilling Program), (Editors Gradstein, F. and Ludden, J., et al.) 215-224.

106. Collister J.W., Summons R.E., Lichtfouse E. and Hayes J.M., 1992. An isotopic biogeochemical study of the Green River oilshale. Organic Geochemistry 19, 265-276.

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107. Des Marais D.J., Hayes J.M., Strauss H. and Summons R.E., 1992. Carbon isotopic evidence for the stepwise oxidation of the Proterozoic environment. Nature 359, 605-609.

108. Thomas J., Marshall J., Mann A.L., Summons R.E. and Maxwell J.R., 1993. Dinosteranes (4,23,24-trimethylsteranes) and other biological markers in dinoflagellate-rich marine sediments of Rhaetian age. Organic Geochemistry 20, 91-104.

109. Murray A.P., Summons R.E., Bradshaw J. and Pawih B., 1993. Cainozoic oil in Papua New Guinea- Evidence from geochemical analysis of two newly discovered seeps. In: Petroleum Exploration and Development in Papua New Guinea: Proceedings of the second PNG Petroleum Convention, Port Moresby (eds. Carman G.J. and Carman Z.), p. 489-498.

110. Summons R.E., Barrow R.A., Capon R.J., Hope J.M. and Stranger C., 1992. The structure of a new C25 isoprenoid alkene biomarker from diatomaceous microbial communities. Australian Journal of Chemistry 46, 907-915.

111. Des Marais D.J., Hayes J.M., Strauss H. and Summons R.E., 1993. Proterozoic Carbon Cycle. Nature 362, 118 (Scientific Correspondence).

112. Revill A.T., Volkman J.K., O'Leary T., and Summons R.E., 1993. Aromatic hydrocarbon biomarkers in tasmanite oil shale from Tasmania, Australia. In: Øygard K. (ed) Organic Geochemistry: Poster sessions from the 16th International Meeting on Organic Geochemistry, Stavanger, pp. 3-6.

113. Chen J., Summons R.E., Fu J.and Sheng G., 1993. The distribution and implication of biomarkers from some Chinese Tertiary lacustrine sediments, Biyang Basin. In: Øygard K. (ed) Organic Geochemistry: Poster sessions from the 16th International Meeting on Organic Geochemistry, Stavanger, pp. 313-316.

114. Padley D., McKirdy, D.M., Murray, A.P. and Summons, R.E., 1993. Oil strandings on the beaches of southern Australia: Origins from natural seepage and shipping. In: Øygard K. (ed) Organic Geochemistry: Poster sessions from the 16th International Meeting on Organic Geochemistry, Stavanger, pp. 660-663.

115. Murray A.P., Summons R.E., Boreham C.J., Reed J.D. and Francis D.A., 1993. Geochemistry of oils and source rocks of the East Coast Basin and implications for the Taranaki Basin. 1994 New Zealand Petroleum Conference Proceedings, pp.338-351.

116. Summons R.E., 1993. Biogeochemical cycles: A review of fundamental aspects of organic matter formation, composition and preservation. In: Organic Geochemistry (eds. Engel, M. & Macko, S.), Plenum Press, pp 3-21.

117. Summons R.E., Bradshaw J., Brooks D.M., Goody A.K., Murray A.P. and Foster C.B., 1993. Hydrocarbon composition and origins of coastal bitumens from the Northern Territory, Australia. Petroleum Explorationists Society of Australia Journal 21, 31-42.

118. Kenig F., Hayes J.M., Popp B.N. and Summons R.E., 1994. Isotopic biogeochemistry of the Oxford Clay Formation (Jurassic), U.K. Journal of the Geological Society, London, 151, 139-152.

119. Schoell M., Schouten S., Sinninghe Damsté J.S., de Leeuw J.W. and Summons, R.E., 1994. A molecular organic carbon isotope record of Miocene climate changes. Science 263, 1122-1125.

120. McCaffrey M.A., Moldowan J.M., Lipton P.A., Summons R.E., Peters K.E., Jeganathan A. and Watt D.S., 1994. Paleoenvironmental implications of novel C30 steranes in Precambrian to Cenozoic age petroleum and bitumens. Geochimica et Cosmochimica Acta 58, 529-532.

121. Summons R.E., Jahnke L.L. and Roksandic Z., 1994. Carbon isotopic fractionation in lipids from methanotrophic bacteria: Relevance for interpretation of the geochemical record of biomarkers. Geochimica et Cosmochimica Acta 58, 2853-2863.

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122. Murray A.P., Padley D., McKirdy D.M., Booth W.E. and Summons R.E., 1994. Oceanic transport of fossil dammar resin; the chemistry of coastal resinites of South Australia. Geochimica et Cosmochimica Acta 58, 3049-3059.

123. Revill A.T., Volkman J.K., O'Leary T., Summons R.E., Boreham C.J., Banks M.R. and Denwer K., 1994. Depositional setting, hydrocarbon biomarkers and thermal maturity of tasmanite oil shales from Tasmania, Australia. Geochimica et Cosmochimica Acta, 58, 3803-3822.

124. McKirdy D.M., Summons, R.E., Padley, D., Serafini, K.M., Boreham, C.J. and Struckmeyer H.I.M., 1994. Molecular fossils in coastal bitumens from southern Australia: signatures of precursor biota and source rock environments. Organic Geochemistry 21, 265-286.

125. Boreham C.J., Roksandic Z., Dowling L.M., Hutton A. and Summons R.E., 1994. Chemical, molecular and isotopic differentiation of organic facies in the Duaringa oilshale deposit, Queensland, Australia. Organic Geochemistry 21, 685-712.

126. Freeman K.H., Boreham C.J., Summons R.E. and Hayes J.M., 1994. The effect of aromatisation on the isotopic compositions of hydrocarbons during early diagenesis. Organic Geochemistry 21, 1037-1049.

127. Murray A.P., Summons R.E., Boreham C.J., and Dowling L.M., 1994. Biomarker and n-alkane isotope profiles for Tertiary oils: relationship to source rock depositional setting. Organic Geochemistry 22, 521-542.

128. Bradshaw M.T., Bradshaw J., Murray A.P., Needham D.J., Spencer L., Summons R.E., Wilmot J., & Winn S., 1994. Petroleum systems in West Australian basins. In Purcell P.G. & R.R. (Eds), The Sedimentary Basins of Western Australia, Proceedings of Petroleum Exploration Society of Australia Symposium, Perth, 1994, 93-118.

129. Summons R.E., Taylor D. and Boreham C.J., 1994. Geochemical tools for evaluating petroleum generation in Middle Proterozoic sediments of the McArthur Basin, Northern Territory. Australia. Australian Petroleum Explorationists Association Journal 34, 692-706.

130. Revill A.T., Volkman J.K., O'Leary T., Summons R.E., Boreham C.J., Banks M.R. and Denwer K., 1995. Reply to the comment by W.E. Domack on “Depositional setting, hydrocarbon biomarkers and thermal maturity of tasmanite oil shales from Tasmania, Australia. Geochimica et Cosmochimica Acta, 59, 2397.

131. Jahnke L.L., Summons R.E., Dowling L.M. and Zahiralis K.D., 1995. Identification of methanotrophic lipid biomarkers in cold-seep mussel gills: Chemical and isotopic analysis. Applied and Environmental Microbiology 61, 576-582.

132. Padley D., McKirdy D.M., Skinner J.E., Summons R.E. and Morgan R.P. 1995. Crayfish group hydrocarbons - Implications for palaeoenvironment of Early Cretaceous rift fill in the Western Otway Basin, Australian Petroleum Explorationists Association Journal 35, 517-538.

133. Summons R.E., Murray A.P., Boreham C.J. and Gorter J., 1995. Chemostratigraphy and the composition of oils from the Perth Basin, Western Australia, Australian Petroleum Explorationists Association Journal 35, 613-632.

134. Dowling L.M., Summons R.E., Murray A.P. and Boreham C.J., 1995. Carbon isotopic composition of hydrocarbons in ocean transported bitumens from Australia. Organic Geochemistry 23, 729-737.

135. Dahl J., Moldowan J.M., Summons R.E., McCaffrey M.A., Lipton P.A., Watt D.S. and Hope J.M., 1995. Extended 3-alkyl steranes and 3-alkyl triaromatic steroids in oils and rock extracts. Geochimica et Cosmochimica Acta 59, 3717-3729.

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136. Dahl J., Moldowan J.M., Summons R.E., McCaffrey M.A., Lipton P.A., 1995. Steroid hydrocarbons with 3-alkylation in petroleum and rock extracts. In: Organic Geochemistry: Developments and applications to energy, climate and human history. Selected papers from the 17th International Meeting on Organic Geochemistry (Eds Grimalt J.O. and Dorronsoro C.) Donostia-San Sebastian. pp. 928-9.

137. Moldowan J.M., Dahl J., Fago F.G., Shetty R., Watt D.S., Jacobson S.R., Huizinga B.J., McCaffrey M.A. and Summons R.E., 1995. Correlation of biomarkers with geological age. In: Organic Geochemistry: Developments and applications to energy, climate and human history. Selected papers from the 17th International Meeting on Organic Geochemistry (Eds Grimalt J.O. and Dorronsoro C.) Donostia-San Sebastian. pp. 418-20.

138. Summons R.E., Hope J.M., Dowling L.M., Jahnke L.L., Largeau C. and Metzger P., 1995. Carbon isotopic fractionation in lipid biosynthesis by algae and cyanobacteria. In: Organic Geochemistry: Developments and applications to energy, climate and human history. Selected papers from the 17th International Meeting on Organic Geochemistry (Eds Grimalt J.O. and Dorronsoro C.) Donostia-San Sebastian. pp. 418-20.

139. Logan G.A., Hayes J.M., Hieshima G.B. and Summons R.E., 1995. Terminal Proterozoic reorganisation of biogeochemical cycles. Nature 376, 53-56.

140. M.I., Summons R.E., Gagan M.K., Roksandic Z., Dowling L.M., Head J., Fifield L.K., Cresswell R.G. and Johnson D., 1995. Terrestrial vegetation change inferred from n-alkane 13C analysis in the marine environment. Geochimica et Cosmochimica Acta 59, 2853-2857.

141. Gorter J., Foster C.B., and Summons R.E., 1995. Carbon isotopes and the Permian-Triassic boundary in the north Perth, Bonaparte and Carnarvon Basins, Western Australia. Petroleum Exploration Society of Australia Journal 24, 21-38.

142. Sosrowidjojo I.B., Murray A.P., Alexander R., Kagi R.I. and Summons R.E., 1996. Bicadinanes and related compounds as maturity indicators for oils and sediments. Organic Geochemistry 24, 43-55.

143. Lisk M., George S.C., Summons R.E., Quesada R.A. and O’Brien G.W., 1996. Mapping hydrocarbon charge histories: Detailed characterisation of the South Pepper Oil Field, Carnarvon Basin. Australian Petroleum Production and Explorationists Association Journal 36, 445-463.

144. Loutit T.S., Summons R.E., Bradshaw M.T. and Bradshaw J., 1996. Petroleum systems of the North West Shelf, Australia: How many are there? Proceedings of the Indonesian Petroleum Association 25th Anniversary Convention p. 437-452.

145. Walter M., Swart R. and Summons R., 1996. Oil and gas shows numerous in Nama basin, southern Africa. Oil and Gas Journal 94, 76-80.

146. Edwards D.S., Summons R.E., Kennard J.M., Nicoll R.S., Bradshaw J., Bradshaw M., Foster C.B., O’Brien G.W. and Zumberge J.E., 1997. Geochemical characterisation of Palaeozoic Petroleum Systems in northwestern Australia. Australian Petroleum Production and Explorationists Association Journal 37, 351-379.

147. Foster C.B., Logan G.A., Summons R.E., and Edwards D.S., 1997. Carbon isotopes, kerogen types and the Permian-Triassic boundary in Australia: Implications for exploration. Australian Petroleum Production and Explorationists Association Journal 37, 472-489.

148. Bradshaw M.T., Bradshaw J., Edwards D.S., Foster C.B., Loutit T.S., McConachie B., Moore A., Murray A.P. and Summons R.E., 1997. Australian and eastern Indonesian petroleum systems. Proceedings of the Petroleum Systems of SE Asia and Australasia Conference May 1997, Indonesian Petroleum Association, 141-153.

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149. Murray A.P., Sosrowidjojo I.B., Alexander R., Kagi R.I., Norgate C.M. and Summons R.E., 1997. Oleananes in oils and sediments: evidence of marine influence during early diagenesis? Geochimica et Cosmochimica Acta 61,1261-1276.

150. Metzger P., Pouet Y. and Summons R.E., 1997. Chemotaxanomic evidence for the similarity between Botryococcus braunii L Race and Botryococcus neglectus. Phytochemistry 44, 1071-1075.

151. Logan G.A., Summons R.E., Hayes J.M., 1997. An isotopic biogeochemical study of Neoproterozoic and Early Cambrian sediments from the Centralian Superbasin. Geochimica et Cosmochimica Acta, 61, 5391-5409.

152. Summons R.E., Franzmann P.D. and Nichols P.D., 1998. Carbon isotopic fractionation associated with methylotrophic methanogenesis. Organic Geochemistry 28, 465-475.

153. Summons R.E., Bradshaw M., Crowley J., Edwards D.S., George S.C. and Zumberge J.E., 1998. Vagrant oils: geochemical signposts to unrecognised petroleum systems. In Purcell P.G. & R.R. (Eds), The Sedimentary Basins of Western Australia 2, Proceedings of Petroleum Exploration Society of Australia Symposium, Perth, 1998, 169-184.

154. Blevin J., Boreham C.J., Struckmeyer H.I.M., Loutit T.S. and Summons. R.E, 1998. A new Cretaceous petroleum system in the Browse Basin. In Purcell P.G. & R.R. (Eds), The Sedimentary Basins of Western Australia 2, Proceedings of Petroleum Exploration Society of Australia Symposium, Perth, 1998, 397-420.

155. Simoneit B.R.T., Summons .R.E. and Jahnke L.L., 1998. Biomarkers as tracers for life on early Earth and Mars. Origins of Life and Evolution of the Biosphere 28, 475-483.

156. Murray A.P., Edwards D., Hope J.M., Boreham C.J., Alexander R. and Summons R.E., 1998. Carbon isotope biogeochemistry of plant resins and derived hydrocarbons. Organic Geochemistry 29, 1199-1214.

157. Foster C.B., Logan G.A. and Summons R.E., 1998. The Permian-Triassic boundary in Australia: where is it and how is it expressed? Proceedings of The Royal Society of Victoria 110, 247-266.

158. Edwards D.S., McKirdy D.M. and Summons R.E., 1998. Enigmatic asphaltites from the Southern Australian Margin: Molecular and carbon isotopic composition. Petroleum Exploration Society of Australia Journal 26, 106-129.

159. George S.C., Lisk M., Summons R.E. and Quezada R.A., 1998. Constraining the oil charge history of the South Pepper oilfield from the analysis of oil-bearing fluid inclusions. Organic Geochemistry 29, 631-648.

160. Jahnke L.L., Summons R.E., Hope J.M. and Des Marais D.J., 1999. Carbon isotopic fractionation in lipids from methanotrophic bacteria II: The effects of physiology and environmental parameters on the biosynthesis and isotopic signatures of biomarkers. Geochimica et Cosmochimica Acta, 63, 79-93.

161. Gibson J.A.E., Trull T., Nichols P.D., Summons R.E and McMinn A., 1999. Sedimentation of 13C-rich organic matter from Antarctic sea-ice algae: A potential indicator of past sea-ice extent. Geology 27, 331-334.

162. Summons R.E., 1999. Molecular probing of deep secrets (N&V). Nature 398, 752-753.

163. Logan G.A., Calver C.R, Gorjan P., Summons R.E., Hayes J.M. and Walter M.R., 1999. Terminal Proterozoic mid-shelf benthic microbial mats in the Centralian Superbasin and their environmental significance. Geochimica et Cosmochimica Acta 63, 1345-1358.

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164. Wilkinson C.R., Summons R.E. and Evans E., 1999. Nitrogen fixation in symbiotic marine sponges: ecological significance and difficulties in detection. In: Hooper J.N.A. (Ed.) Proceedings of the 5th International Sponge Symposium, 'Origin & Outlook'. Memoirs of the Queensland Museum (ISSN 0079-8835) 44, 667-673.

165. Summons R.E., Jahnke L.L., Logan G.A. and Hope J.M., 1999. 2-Methylhopanoids as biomarkers for cyanobacterial oxygenic photosynthesis. Nature 398, 554-557.

166. Brocks J.J., Logan G.A., Buick R. and Summons R.E., 1999. Archean molecular fossils and the early rise of eukyotes. Science 285, 1033-1036.

167. Summons R.E., 1999. Compound-specific isotope analysis, Encyclopedia of Geochemistry, 100.

168. Summons R.E., 1999. Precambrian organic matter, Encyclopedia of Geochemistry, 535-536.

169. Boreham C.J. and Summons R.E., 1999. New insights into the active petroleum systems in the Cooper and Eromanga basins. Australian Petroleum Production and Explorationists Association Journal 39, 263-296.

170. Williamson P.E., Forman D.J., le Poidevin S. and Summons R.E., 2000. Where is Australia’s petroleum and how long will it last? AGSO Journal of Australian Geology and Geophysics 17, 35-42. .

171. Hinrichs K.-U., Pancost R.D., Summons R.E., Sprott G.D., Sylva S.P., Sinninghe Damsté J.S. and Hayes J.M., 2000. Mass spectra of sn-2-hydroxyarchaeol, a polar lipid biomarker for anaerobic methanotrophy, Geochemistry Geophysics Geosystems, vol. 1, Paper number 2000GC000042.

172. Grimalt, J. O., Rullkötter J., Sicre M.-A., Summons R.E., Farrington J., Harvey H.R., Goñi M. and Sawada K., 2000. Modifications of the C37 alkenone and alkenoate composition in the water column and sediment: Possible implications for sea surface temperature estimates in paleoceanography, Geochemistry Geophysics Geosystems, vol. 1, Paper number 2000GC000053.

173. Kenig, F., Popp, B. N. & Summons, R. E., 2000. Preparative HPLC with ultrastable-Y zeolite for compound-specific carbon isotopic analyses. Organic Geochemistry 31, 1087-1094.

174. Schouten S., Rijpstra W.I.C., Kok M., Hopmans E.C., Summons R.E., Volkman J.K. and Sinninghe Damsté J.S., 2001. Molecular organic tracers of biogeochemical processes in a meromictic Antarctic lake (Ace Lake). Geochimica et Cosmoshimica Acta 65, 1629-1640.

175. Hinrichs K.-U., Summons R.E., Orphan V., Sylva S.P. and Hayes J.M., 2000. Molecular and isotopic analysis of anaerobic methane-oxidising communities in marine sediments. In Yalcin M.N. and Inan S. (eds) Advances in Organic Geochemistry 1999, Organic Geochemistry 31, 1685-1701.

176. Chen J. and Summons R.E., 2001. Complex patterns of steroidal biomarkers in Tertiary lacustrine sediments of the Biyang Basin, China. Organic Geochemistry 32, 115-126.

177. Labrenz, M., Druschel G.K., Thomsen-Ebert T., Gilbert B., Welch S.A., Kemner K.M., Logan G.A., Summons R.E., De Stasio G., Bond P.L., Lai B., Kelly S.D, and Banfield J.F., 2000. Formation of Sphalerite (ZnS) Deposits in Natural Biofilms of Sulfate-Reducing Bacteria: Science 290, 1744-1747.

178. Schouten S., Schoell M., Sinninghe Damsté J.S., Summons R.E. and de Leeuw J.W., 2001. Molecular biogeochemistry of Monterey Sediments, Naples Beach, California II. Stable carbon isotopic compositions of free and sulphur-bound carbon skeletons In: Isaacs, C.M. and Rullkötter J. (Eds.) The Monterey Formation: From Rocks to Molecules. Columbia Univ. Press, 175-188.

179. Logan G.A. and Summons R.E., 2001. Late Proterozoic Biogeochemical Cycles. In Palaeobiology II (eds. Briggs D.E.G. & Crowther P.) Blackwell Science, Oxford, 22-25.

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180. Logan G.A., Hinman M.C., Walter M.R. and Summons R.E., 2001. Biogeochemistry of the 1640 Ma McArthur River (HYC) lead-zinc ore and host sediments, Northern Territory, Australia. Geochimica et Cosmochmica Acta 65, 2317-2336.

181. Jahnke L.L., Eder W., Huber R., Hope J.M., Hinrichs K.-U., Hayes J.M., Des Marais D.J., Cady S.L. and Summons R.E., 2001. Signature lipids and stable carbon isotope analyses of Octopus Spring hyperthermophilic communities compared to those of Aquificales representatives. Applied and Environmental Microbiology 67, 5179-5189.

182. Burns K.A., Greenwood P.F., Summons R.E and Brunskill G.J., 2001. Vertical fluxes of hydrocarbons on the Northwest Shelf of Australia as estimated by a sediment trap study. Organic Geochemistry 32, 1241-1255.

183. Hinrichs K.-U., Eglinton G., Engel M.H. and Summons R.E., 2001. Exploiting the multivariate isotopic nature of organic compounds. Geochemistry Geophysics Geosystems, vol. 1, Paper number 2001GC000142.

184. Summons R.E., Metzger P., Largeau C., Murray A.P., Hope J.M., 2002. Polymethylsqualanes from Botryococcus braunii in lacustrine sediments and oils. Organic Geochemistry 33, 99-109.

185. Chen J., Walter M.R., Logan G.A., Hinman M.C. and Summons R.E., 2003. The Paleoproterozoic McArthur River (HYC) Pb/Zn/Ag deposit of northern Australia: organic geochemistry and ore genesis. Earth and Planetary Science Letters 210, 467-479.

186. Greenwood P.W. and Summons R.E., 2003. GC-MS detection and significance of crocetane in sediments and crude oils. Organic Geochemistry 33, 1211-1222.

187. Brocks J.J., Love G.D., Snape C.E., Logan G.A., Summons R.E. and Buick R., 2003. Release of bound aromatic hydrocarbons from late Archean and Mesoproterozoic kerogens via hydropyrolysis. Geochimica et Cosmochimica Acta 67, 1521-1530.

188. Brocks J.J., Summons R.E., Logan G.A. and Buick R., 2003. Molecular Fossils in Archean rocks II: Composition, thermal maturity and integrity of hydrocarbons extracted from sedimentary rocks of the 2.78 - 2.45 billion years old Mount Bruce Supergroup, Pilbara Craton, Western Australia. Geochimica et Cosmochimica Acta 67, 4289-4319.

189. Brocks J.J., Buick R., Summons R.E. and Logan G.A., 2003. A reconstruction of Archean biological diversity based on molecular fossils from the 2.78 - 2.45 billion year old Mount Bruce Supergroup, Hamersley Basin, Western Australia. Geochimica et Cosmochimica Acta 67, 4321-4335.

190. Brocks J. J., Summons R. E., Buick R., and Logan G. A., 2003. Origin and significance of aromatic hydrocarbons in giant iron ore deposits of the late Archean Hamersley Basin in Western Australia. Organic Geochemistry 34, 1161-1175.

191. Rothman D. H., Hayes J. M., and Summons R. E., 2003. Dynamics of the Neoproterozoic carbon cycle. Proceedings of the National Academy of Science (USA) 100, 8124-8129.

192. Edwards D.S., Preston J.C., Kennard J.M., Boreham C.J., van Aarssen B.K.J, Summons R.E. and Zumberge J. E., 2004. Geochemical Characteristics of Vulcan Sub-basin Hydrocarbons, western Bonaparte Basin. Proceedings of the Timor Sea Symposium, Darwin Northern Territory, 19-20 June 2003 (eds G. K. Ellis, P. W. Baillie and T. J. Munson), Northern Territory Geological Survey, Special Publication 1, pp 169-201.

193. Brocks J.J. and Summons R.E., 2003. Sedimentary hydrocarbons, biomarkers for early life. In Treatise in Geochemistry (Eds. Holland H.D. and Turekian K.). Ch. 8.03, pp. 65-115.

194. Talbot H.M., Summons R.E., Jahnke L.L. and Farrimond P., 2003. Characteristic fragmentation of bacteriohopanepolyols during atmospheric pressure

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chemical ionisation liquid chromatography /ion trap mass spectrometry. Rapid Communications in Mass Spectrometry 17, 1–9

195. Sturt H.F., Summons R.E., Smith K., Elvert M. and Hinrichs K.-U., 2004. Intact polar membrane lipids in prokaryotes and sediments deciphered by ESI-HPLC-MSn – new biomarkers for biogeochemistry and microbial ecology. Rapid Communications in Mass Spectrometry 18, 617-628.

196. Jahnke L.L., Embaye T., Hope J.M., Turk K.A., van Zuillen M., Des Marais D.J., Farmer J.D. and Summons R.E., 2004. Lipid Biomarker and Carbon Isotopic Signatures for Stromatolite-Forming, Microbial Mat Communities and Phormidium cultures from Yellowstone National Park. Geobiology 2, 31-47.

197. Greenwood P.F., Arouri K., Logan G.A and Summons R.E., 2004. Novel series of dialkylalkanes and highly branched alkanes from Proterozoic sediments. Organic Geochemistry 35, 341-346.

198. Sessions A.L., Sylva S.P., Summons R.E. and Hayes J.M., 2004. Isotopic exchange of carbon-bound hydrogen over geological timescales. Geochimica et Cosmochimica Acta 68, 1545-1559.

199. Jahn U., Summons R., Sturt H.F., Grosjean E. and Huber H., 2004. Composition and source of the lipids of Nanoarchaeum equitans and their origin in the cytoplasmic membrane of its host Ignicoccus sp. KIN4/I. Archives of Microbiology 182, 404-413.

200. Schimmelmann A., Sessions A.L., Boreham C.J., Edwards D.S., Logan G.A. and Summons R.E., 2004. D/H ratios in terrestrial-sourced petroleum systems. Organic Geochemistry 35, 1169-1195.

201. Love G.D., Bowden S.A., Linda L. Jahnke L.L. , Colin E. Snape C.E., Campbell C.N., Day J.G. and Summons R.E., 2004. A catalytic hydropyrolysis method for the rapid screening of microbial cultures for lipid biomarkers. Organic Geochemistry 36, 63-82.

202. Fischer W.W., Summons R.E. and Pearson A., 2005. Targeted genomic detection of biosynthetic pathways: anaerobic production of hopanoid biomarkers by a common sedimentary microbe. Geobiology 3, 33-40.

203. Grice K., Cao C., Bőttcher M.E., Twitchett R.J., Grosjean E., Summons R.E., Turgeon S.C, Dunning W. and Jin Y., 2005. Photic Zone Euxinia During the Permian-Triassic Superanoxic Event. Science 307, 706-709.

204. Grice K., Summons R. E., Grosjean E., Twichett R. J., Dunning W., Wang S. X. and Boettcher M. E. 2005. Novel depositional conditions of the Northern Onshore Perth Basin (Basal Triassic). AAPEA Journal 45, 263-273.

205. O'Brien G. W., Lawrence G. M., Williams A. K., Glenn,K., Barrett A. G., Lech M., Edwards D. S., Cowley R., Boreham C. J., and Summons R. E., 2005, Yampi Shelf, Browse Basin, North-West Shelf, Australia: a test-bed for constraining hydrocarbon migration and seepage rates using combinations of 2D and 3D seismic data and multiple, independent remote sensing technologies: Marine and Petroleum Geology 22, 517-549.

206. Kelly D.S., Karson J.A., Fruh-Green G.L., Yoerger D., Shank T.M., Butterfield D.A., Hayes J.M., Schrenk M.O., Olson E., Proskuroski G., Jakuba M., Bradley Al, Larson B., Ludwig K, Glickson D., Buckman K., Bradley A.S., Roe K., Elend M.J., Delacour A., Bernasconi S., Lilley M.D., Baross J.A., Summons R.E. and Sylva S.P., 2005. A peridotite-hosted ecosystem: The Lost City Hydrothermal Field. Science 307, 1428-1434.

207. Brocks J.J., Love G.D., Summons R.E., Knoll A.H., Logan G.A., Bowden S.A., 2005. Biomarker evidence for green and purple sulphur bacteria in a stratified Palaeoproterozoic sea. Nature 437, 866-870.

208. Summons R.E., Bradley A.S., Jahnke L.L. and Waldbauer J.R., 2006. Steroids, Triterpenoids and Molecular Oxygen. Philosophical Transactions of the Royal Society B 361, 951-968.

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209. Fike, D.A., Grotzinger J.P., Pratt L.M. and Summons R.E., 2006. Oxidation of the Ediacaran ocean. Nature 444, 744-747.

210. Knoll A.H., Summons R.E., Waldbauer J.R. and Zumberge J., 2007. The Geological Succession of Primary Producers in the Oceans. In Falkowski P. and Knoll A.H. (eds) The Evolution of Primary Producers in the Sea. Academic Press, Boston, pp. 133–163.

211. Martinez A., Bradley A.S., Waldbauer J.R., Summons R.E. and DeLong E.F., 2007. Proterhodopsin photosystem gene expression enables photophosphorylation in a heterologous host. Proceedings of the National Academy of Science (USA) 104, 5590-5595.

212. Marshall C.P., Love G.D., Snape C.E., Hill A.C., Allwood A.C., Walter M.R., Kranendonk M.J. Van, Bowden S.A., Sylva S.P. and Summons R.E., 2007, Structural characterization of kerogen in 3.4 Ga Archaean cherts from the Pilbara Craton, Western Australia. Precambrian Research 155, 1-23.

213. Summons R.E., Albrecht P., McDonald G. and Moldowan J.M., 2007, Molecular Biosignatures: Generic Qualities of Organic Compounds that Betray Biological Origins. Space Science Reviews 135, 133-157.

214. Peterson K.J., Summons R.E. and Donoghue P.C.J., 2007, Molecular Palaeobiology. Palaeontology 50, 775-809.

215. Hays L., Beatty T., Henderson C.M., Love G.D. and Summons R.E., 2007. Evidence for photic zone euxinia through the end-Permian mass extinction in the Panthalassic Ocean (Peace River Basin, Western Canada), Palaeoworld 16, 39-50.

216. Rashby S.E., Sessions A.L., Summons R.E. and Newman D.K. 2007. Biosynthesis of 2-

methylbacteriohopanepolyols by an anoxygenic phototroph. Proceedings of the National Academy of Science (USA) 104, 15099-15104.

217. Sherman L.S., Waldbauer J.R. and Summons R.E., 2007. Improved methods for isolating and validating indigenous biomarkers in Precambrian rocks. Organic Geochemistry 38, 1987–2000.

218. Fike D.A., Grotzinger J.P., Pratt L.M. and Summons R.E., 2007. Ediacaran oxidation and biotic evolution – Reply. Nature 450, E18. DOI: 10.1038/nature06361.

219. Gupta N.S., Cambra-Moo O., Briggs D.E.G., Love G.D., Fregenal-Martinez M.A. and Summons R.E., 2008. Molecular taphonomy of macrofossils from the Cretaceous Las Hoyas Formation, Spain. Cretaceous Research 29, 108.

220. Talbot H.M., Summons R.E., Jahnke L.L., Cockell C.S., Rohmer M. and Farrimond P., 2008. Cyanobacterial bacteriohopanepolyol signatures from cultures and natural environmental settings. Organic Geochemistry 39, 232-263.

221. Summons R.E., Katherine H. Freeman K.H., Grice K., Pancost R.D., 2008. Where would we be without the isotopes? Organic Geochemistry 39, Pages 483-484.

222. Summons R.E., Hope J.M, Swart R. and Walter M.R., 2008. Origins of Bitumens from the Nama Basin: Petroleum Derived from Permian Lacustrine Basins Traversing southwestern Gondwana. Organic Geochemistry 39, 589-607.

223. Londry K.L., Dawson K.G., Grover H.D., Summons R.E. and. Bradley A.S., 2008. Stable carbon isotope fractionation between four substrates of Methanosarcina barkeri and its products. Organic Geochemistry 39, 608-621.

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224. Cao C., Wang W., Liu L., Shen S., Summons R.E., 2008. Two phases of δ13C anomalies in the latest Permian: Evidence from the terrestrial sequences in northern Xinjiang, China. Earth and Planetary Science Letters 270, 251-257.

225. Botta O., Bada J.L., Gomez-Elvira J., Javaux E., Selsis F. and Summons R.E., 2008. Strategies of Life Detection: Summary and Outlook. Space Science Reviews 135, 1-3.

226. Orphan V.J., Jahnke L.L., Embaye T., Turk K.A., Pernthaler A., Summons R.E. & DesMarais D.J. (2008). Characterization and spatial distribution of methanogens and methanogenic biosignatures in hypersaline microbial mats of Baja California. Geobiology 6, 376 – 393.

227. Jahnke L.L., Orphan V.J., Embaye T., Turk K.A., Kubo M., Summons R.E. & DesMarais D.J. (2008). Lipid biomarker and phylogenetic analyses to reveal archaeal biodiversity and distribution in hypersaline microbial mat and underlying sediment. Geobiology 6, 394 - 410.

228. Kodner R.B., Summons R.E., Pearson A. and Knoll A.H., 2008, Sterols in red and green algae: quantification, phylogeny and relevance for the interpretation of geologic steranes. Geobiology 6, 411-420.

229. Kodner R.B., Knoll A.H., Summons R.E., Pearson A. and King N., 2008. Sterols in a Unicellular Relative of the Metazoans Proceedings of the National Academy of Science (USA) 105, 9897-9902.

230. Eigenbrode J.L., Summons R.E. and Freeman K.H., 2008. Methylhopanes in Archean Sediments. Earth and Planetary Science Letters 273, 323–331.

231. Johnston D.T., Summons R.E., Farquhar J., Canfield D.E., Kaufman A.J., Masterson A., Shen Y., 2008. Sulfur isotope biogeochemistry of restricted and open marine environments of the Mesoproterozoic. Geochimica et Cosmochimica Acta 72, 4278–4290.

232. Jahren A.H., Byrne M.C., Sternberg L.S.L. and Summons R.E., 2008. Changes in environmental water of upland versus lowland polar forests: Evidence from δD, δ18O and δ13C within specific compounds of Eocene sediments. Paleo-cubed 271, 96–103.

233. Bradley A.S., Hayes J.M. and Summons R.E., 2009. Extraordinary 13C enrichment of diether lipids at the Lost City Hydrothermal Field suggests a carbon-limited ecosystem. Geochimica et Cosmochimica Acta 73, 102–118.

234. Waldbauer J.R., Sherman L.S., Sumner D.Y. and Summons R.E., 2009. Late Archean molecular fossils from the Transvaal Supergroup record the antiquity of microbial diversity and aerobiosis. Precambrian Research 169, 28–47.

235. Cao C., Love G.D., Hays L.E., Wang W., Shen S. and Summons R.E., 2009. Biogeochemical Evidence for a Euxinic Ocean and Ecological Disturbance Presaging the end-Permian Mass Extinction Event. Earth and Planetary Science Letters 288, 188-201.

236. Pearson A., Leavitt W.D., Saenz J.P., Summons R.E., Tam, M.C.-M. and Close H.G., 2009. Diversity of hopanoids and squalene-hopene cyclases across a tropical land-sea gradient. Environmental Microbiology 11, 1208–1223.

237. Gupta N.S., Briggs D.E.G., Landman N.H., Tanabe K. and Summons R.E., 2009. Molecular structure of organic components in cephalopods: evidence for oxidative cross linking in fossil marine invertebrates. Organic Geochemistry 39,1405-1414.

238. Grosjean E., Love G. D., Stalvies C., Fike D.A. and Summons R.E., 2009. Origin of petroleum in the Neoproterozoic-Cambrian South Oman Salt Basin. Organic Geochemistry 40, 87–110.

239. Love G.D., Grosjean E., Stalvies C., Fike D.A., Bradley A.S., Bhatia M., Meredith W., Snape C.E., Bowring S.A., Condon D.J., Grotzinger J.P. and Summons R.E., 2009. Molecular fossil evidence for the appearance of Demosponges during the Cryogenian Period. Nature 457, 718-722.

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240. Sepúlveda J., Jens Wendler J., Arne Leider A., Hans-Joachim Kuss H.-J., Summons R.E., and Hinrichs K.-U., 2009. Molecular-isotopic evidence of environmental and ecological changes across the Cenomanian-Turonian boundary in the Levant Platform of central Jordan. Organic Geochemistry 40, 553-568.

241. Gupta S.N., Cody G.D., Tetlie O.E., Briggs D.E.G. and Summons R.E., 2009. Rapid incorporation of lipids into macromolecules during experimental decay of invertebrates: Initiation of geopolymer formation. Organic Geochemistry 40, 589-594.

242. Gupta S.N., Hong Y., Leng Q., Briggs D.E.G., Cody G.D. and Summons R.E., 2009. Diagenesis of plant biopolymers: Decay and macromolecular preservation of Metasequoia. Organic Geochemistry 40, 802-809.

243. Kodner R.B., Knoll A.H. and Summons R.E., 2009, Phylogenetic Investigation of the Aliphatic, Non-hydrolyzable Biopolymer Algaenan, with a Focus on the Green Algae. Organic Geochemistry 40, 854-862.

244. Bühring S.I., Smittenberg R.H., Sachse D., Lipp J. S., Golubic S., Sachs J. P., Hinrichs K.-U. and Summons R.E., 2009. A hypersaline microbial mat from the Pacific Atoll Kiritimati: insights into composition and carbon fixation using biomarker analyses and a 13C-labeling approach. Geobiology 7, 308–323.

245. Sessions A.L., Doughty D.M., Welander P.V., Summons R.E. and Newman D.K., 2009. The continuing puzzle of the Great Oxidation Event. Current Biology 19, R567–R574.

246. Welander P.V., Hunter R.C., Zhang L., Sessions A.L., Summons R.E. and Newman D.K. , 2009. Hopanoids play a role in membrane integrity and pH tolerance in Rhodopseudomonas palustris TIE-1. Journal of Bacteriology 191, 6145–6156.

247. Sepúlveda J., Wendler J.E., Summons R.E. and Hinrichs K.-U., 2009. Rapid resurgence of marine productivity after the Cretaceous-Paleogene mass extinction event. Science 326, 129-132.

248. Doughty D.M., Hunter R.C., Summons R.E. and Newman D.K., 2009. 2-Methylhopanoids are

maximally produced in akinetes of Nostoc punctiforme: geobiological implications. Geobiology 7, 524–532.

249. Bradley A.S., Fredricks H., Kai-Uwe Hinrichs K.-U. and Summons R.E., 2009. Structural diversity of diether lipids in carbonate chimneys at the Lost City Hydrothermal Field. Organic Geochemistry 40, 1169-1178.

250. Bradley A.S. and Summons R.E., 2009. Multiple origins of methane at the Lost City Hydrothermal Field. Earth and Planetary Science Letters 297, 34-41.

251. Nabbefeld B., Grice K., Twitchett R.J., Summons R.E, Hays L.E., Böttcher M.E. and Muhammad Asif M., 2010. An integrated biomarker, isotopic and palaeoenvironmental study through the Late Permian event at Lusitaniadalen, Spitsbergen. Earth and Planetary Science Letters 291, 84-96.

252. Nabbefeld B., Grice K., Schimmelmann A., Summons R.E, Troitzsch U. and Twitchett R.J., 2010.A comparison of thermal maturity parameters between freely extracted hydrocarbons (Bitumen I) and a second extract (Bitumen II) from within the kerogen matrix of Permian and Triassic sedimentary rocks. Organic Geochemistry 41, 78-87

253. Wilson J.P., Fischer W.W., Johnston D.T., Knoll A.H., Grotzinger J.P., Walter M.R., McNaughton N.J., Simon M., Abelson J., Schrag D.P., Summons R.E., Allwood A.A., Andres M., Gammon C., Garvin J., Rashby S., Schweizer M. and Watters W.A., 2010. Geobiology of the late Paleoproterozoic Duck Creek Formation, Western Australia. Precambrian Research 179, 135-149.

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254. Tosca N.J., Johnston D.T., Mushegian A., Rothman D.H., Summons R.E. and Knoll A.H., 2010. Clay Mineralogy, Organic Carbon Burial, and Redox Evolution in Proterozoic Oceans. Geochimica et Cosmochimica Acta 74, 1579-1592.

255. Cao C.-Q., Yang Y.C., Shen S.Z., Wang W., Zheng Q.F. and Summons R.E., 2010. Pattern of δ13Ccarb and implications for geological events during the Permian-Triassic transition in South China. Geological Journal 45, 186–194.

256. Welander, P.V., Coleman, M., Sessions, A.L., Summons, R.E. and Newman, D.K., 2010. Identification of a methylase required for 2-methylhopanoid production and implications for the interpretation of sedimentary hopanes. Proceedings of the National Academy of Sciences (USA) 107, 8537–8542. (GS Best Paper Award)

257. Allen, M.A., Burns, B.P., Neilan, B.A., Jahnke, L.L. and Summons, R.E., 2010. Lipid biomarkers in Hamelin Pool microbial mats and stromatolites. Organic Geochemistry 41, 1207-1218.

258. Hallmann C., Kelly A.E, Gupta S.N. and Summons R.E., 2011. Reconstructing deep-time biology with molecular fossils, in Laflamme, M., Schiffbauer, J.D., and Dornbos, S.Q., eds., Quantifying the Evolution of Early Life, Volume 36: Topics in Geobiology, Springer Netherlands, p. 355-401.

259. Summons R.E., Amend J.P., Bish D.L., Buick R., Cody G.D., Des Marais D.J., Dromart G., Eigenbrode J., Knoll A.H. and Sumner D.Y., 2011. Preservation of Martian Organic and Environmental Records: Final Report of the Mars Biosignature Working Group. Astrobiology 11, 157-181.

260. Cody G.D., Gupta S.N., Briggs D.E.G, Kilcoyne A.L.D., Summons R.E., Kenig F., Plotnick R.E. and Scott A.C., 2011. A molecular signature of chitin-protein complex in Paleozoic arthropods. Geology 39, 255-258.

261. Waldbauer J.R., Newman D.K. and Summons R.E., 2011. Microaerobic steroid biosynthesis and the molecular fossil record of Archean life. Proceedings of the National Academy of Sciences (USA) 108, 13409–13414. (Class I: Cozzarelli Prize – PNAS)

262. Summons R.E., 2011. The Great Oxidation Event. In: Science Year 2012. World Book Inc. Chicago, p. 28-41.

263. Meyer-Dombard D.R., Swingley W., Raymond J., Havig J., Shock E.L. and Summons R.E., 2011. Hydrothermal Ecotones and Streamer Biofilm Communities in the Lower Geyser Basin, Yellowstone National Park. Environmental Microbiology 13, 2216–2231.

264. Kelly A.E, Love G.D., Zumberge J.E. and Summons R.E., 2011. Hydrocarbon biomarkers of Neoproterozoic to Lower Cambrian oils from eastern Siberia. Organic Geochemistry 42, 640–654.

265. Dutta S., Tripathib S.M., Mallicka M., Mathews R.P., Greenwood P.F., Raob M.R. and Summons R.E., 2011. Eocene out-of-India dispersal of Asian dipterocarps. Review of Paleobotany and Palynology 166, 63-68.

266. Doughty D.M., Coleman M.L., Hunter R.C., Sessions A.L., Summons R.E. and Newman D.K., 2011. The RND-family transporter, HpnN, is required for hopanoid localization to the outer membrane of Rhodopseudomonas palustris TIE-1. Proceedings of the National Academy of Sciences (USA) 108 (45), E1045-E1051.

267. Saenz J.P., Eglinton T.I. and Summons R.E., 2011. Abundance and structural diversity of bacteriohopanepolyols in suspended particulate organic matter along a river to ocean transect. Organic Geochemistry 42, 774-780.

268. Saenz J.P., Wakeham S.G., Eglinton T.I. and Summons R.E., 2011. New constraints on the provenance of hopanoids in the marine geologic record: Bacteriohopanepolyols in marine suboxic and anoxic environments. Organic Geochemistry 42, 1351-1362.

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269. Hays L.E, Grice K., Foster C.B and Summons R.E., 2011. Biomarker and Isotopic Trends from a Permian-Triassic Sedimentary Section at Kap Stosch, Greenland. Organic Geochemistry 43, 67-82.

270. Alegado R.A., Grabenstatter J.D., Zuzow R., Morris A., Huang S.Y., Summons R.E., and King N., 2011. Algoriphagus machipongoensis sp. nov. co-isolated with a colonial choanoflagellate. International Journal of Systematic and Evolutionary Microbiology Published February 24, 2012 as doi:10.1099/ijs.0.038646-0.

271. Falkowski P.G., Algeo T., Codispoti L., Deutsch C., Emerson S., Hales B., Huey R.B., Jenkins W.J., Kump L.R., Levin L.A., Lyons T.W., Nelson N.B., Schofield O.S., Summons R., Talley L.D., Thomas E., Whitney F., Pilcher C.B., 2011. Ocean deoxygenation: Past, present, and future. Eos Trans. AGU, 92, 409.

272. Gupta N.S. and Summons R.E. 2011. Fate of Chitinous Organisms in the Geosphere. In: Chitin (ed Gupta NS). Springer Netherlands, pp. 133-151.

273. Summons R.E., Illing C.J.. van Zuilen M. and Strauss H., 2013. Traces of Life: Biomarkers and Isotopic Tracers. FAR DEEP Atlas Ch. 7.14 (Melezhik V. et al., Eds), Springer-Verlag, Berlin Heidelberg pp. 1395-1405.

274. Witkowski C., Gupta N.S, Hong Y., Qin L., Williams C.J., Briggs D.E.G. and Summons R.E., 2012. Molecular preservation of Cenozoic conifer fossil lagerstätten from Banks Island, the Canadian Arctic. Palios 27, 279-287.

275. Saenz J.P., Eglinton T.I., Waterbury J. and Summons R.E., 2012. Hopanoids in marine cyanobacteria: probing their phylogenetic distribution and biological role. Geobiology 10, 311–319.

276. French K.L., Tosca N..J., Cao C.-Q. and Summons R.E., 2012. Diagenetic and Detrital Origins of Moretane Anomalies in the Late Permian and Early Triassic. Geochimica et Cosmochimica Acta, 84, 104–125.

277. Algeo T., Henderson C., Ellwood B., Rowe H., Elswick E., Bates S, Lyons T., Hower J.C., Smith C., Maynard B., Hays L.E, Summons R.E., Fulton J., and Freeman K.H., 2012. Evidence for a diachronous Late Permian marine crisis from the Canadian Arctic region. Geological Society of America Bulletin 124, 1424-1448. doi: 10.1130/B30505.1

278. Liu X.-L., Lipp J.S., Schröder J.M., Summons R.E. and Hinrichs K.-U., 2012. Isoprenoidal glycerol dialkanol diethers: a series of novel archaeal lipids in marine sediments. Organic Geochemistry 43, 50-55.

279. Welander P.V., Doughty D.M., Wu C.H., Mehay S., Summons R.E., and Newman D.K., 2012. Identification and characterization of Rhodopseudomonas palustris TIE-1 hopanoid biosynthesis mutants. Geobiology 10, 163-177.

280. Grosjean E., Love G.D., Kelly A.E. and Summons R. E., 2012. Geochemical Evidence for an Early Cambrian Origin of the ‘Q’ Oils and Condensates of North Oman. Organic Geochemistry, 45, 77–90.

281. Copley S.D. and Summons R.E., 2012. Terran Metabolism: The First Billion Years. In: Frontiers of Astrobiology, (Impey C., Lunine J. and José Funes J. (Eds). Cambridge University Press, pp. 48-72.

282. Glass K., Ito S., Wilby P.R., Sota T., Nakamura A., Bowers C.R., Vinther J., Dutta S., Summons R.E., Briggs D.E.G., Wakamatsu K., and Simon J.D., 2012. Direct chemical evidence for undegraded eumelanin pigment from the Jurassic Period. Proceedings of the National Academy of Sciences (USA) 109 (26), 10218–10223.

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283. Garcia Costas, A. M., Tsukatani, Y., Rijpstra, W. I. C., Schouten, S., Welander, P. V., Summons, R. E., and Bryant, D. A., 2012, Identification of the Bacteriochlorophylls, Carotenoids, Quinones, Lipids, and Hopanoids of “Candidatus Chloracidobacterium thermophilum”. Journal of Bacteriology 194, 1158-1168.

284. Liu, X.-L Lipp J.S., Simpson J.H., Lin Y.-S., Summons R.E., Hinrichs K.-U., 2012. Mono- and dihydroxyl glycerol dibiphytanyl glycerol tetraethers in marine sediments: identification of both core and intact polar lipid forms. Geochimica et Cosmochimica Acta 89, 102–115.

285. Summons R.E. and Lincoln S.A., 2012. Biomarkers: Informative Molecules for Studies in Geobiology. In: Fundamentals of Geobiology, First Edition. Eds Knoll A.H, Canfield D.E. and Konhauser K.O., Blackwell Publishing Ltd. pp. 269-296.

286. Welander P.V. and Summons R.E., 2012. Discovery, taxonomic distribution and phenotypic characterization of a gene required for 3-methylhopanoid production. Proceedings of the National Academy of Sciences (USA) 109, 12905-12910.

287. Liu X.-L., Summons R.E. and Hinrichs K.-U., 2012. Extending the known range of glycerol ether lipids in the environment: structural assignments based on MS/MS fragmentation patterns. Rapid Communications in Mass Spectrometry 26, 2295–2302.

288. Bontognali T.R.R., Sessions A.L., Allwood A.C., Fischer W.W. , Grotzinger J.P., Summons R.E. and Eiler J.M., 2012. Sulfur isotopes of organic matter preserved in 3.45-billion-year-old stromatolites reveal microbial metabolism. Proceedings of the National Academy of Sciences (USA) 109, 15146-15151.

289. Wakeham S.G., Turich C., Schubotz F., Podlask A., Lic X.N., Varel R., Astor Y., Sáenz J.P., Rush D., Damsté J.S.S., Summons R.E., Mary I. Scranton M.I., Gordon T. Taylor G.T. and Kai-Uwe Hinrichs K.-U., 2012. Biomarkers, Chemistry and Microbiology Show Chemoautotrophy in a Multilayer Chemocline in the Cariaco Basin. Deep Sea Research Part I: Oceanographic Research Papers 63, 133–156.

290. Edgcomb, V.P., Bernhard J.M., Beaudoin D., Pruss S., Welander P.V., Schubotz F., Mehay S., Gillespie A.L. and Summons R.E., 2013. Molecular indicators of microbial diversity in oolitic sands of Highborne Cay, Bahamas. Geobiology 11, 234–251.

291. Bernhard J.M., Edgcomb V.P., McIntyre-Wressnig A., Summons R.E. , Visscher P.T., Jeglinski, M., 2013. Insights into foraminiferal influences on microfabrics of microbialites at Highborne Cay, Bahamas. Proceedings of the National Academy of Sciences (USA) 110, 9830-9834.

292. Summons R.E., Bird L.R., Gillespie A.L., Pruss S.B., Roberts M. and Sessions A.L., 2013. Lipid biomarkers in ooids from different locations and ages: evidence for a common bacterial flora Geobiology 11, 420–436.

293. Johnson, C.M., McLennan, S.M., McSween, H.Y., and Summons, R.E., 2013, Smaller, better, more: Five decades of advances in geochemistry, in Bickford, M.E., ed., The Web of Geological 5 Sciences: Advances, Impacts, and Interactions: GSA Special Papers 2013, v. 500, p. 259-302.

294. Hallmann C. and Summons R.E., 2013. Paleobiological Clues to Early Atmospheric Evolution Chapter 13.5 in Treatise on Geochemistry, 2nd Edition, In Press.

295. Summons R.E. and Hallmann C., 2013. Organic Geochemical Signatures of Early Life on Earth. Chapter 10.05 in Treatise on Geochemistry, 2nd Edition, In Press.

296. Edgcomb V.P., Bernhard J.M., Summons R.E., Orsi W., Beaudoin D. and Visscher P.T., 2013. Active eukaryotes in microbialites from Highborne Cay, Bahamas and Hamelin Pool (Shark Bay), Australia. ISME J doi:10.1038/ismej.2013.130.

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297. Lincoln, S. A., Bradley, A. S., Newman, S. A., and Summons, R. E., 2013, Archaeal and bacterial glycerol dialkyl glycerol tetraether lipids in chimneys of the Lost City Hydrothermal Field: Organic Geochemistry 60, 45-53.

298. Schubotz F., Meyer-Dombard D.R., Bradley A.S., Fredricks H.F., Shock E.L., Hinrichs K.-U., Summons R.E., 2013. The Lipid and Isotopic Compositions of Streamer Biofilm Communities in the Lower Geyser Basin of Yellowstone National Park. Geobiology, 11, 549-569.

299. Ricci J.N., Coleman M.L., Welander P.V., Sessions A.L., Summons R.E., Spear J.R. and Newman D.K., 2013. Diverse capacity for 2-methylhopanoid production correlates with specific ecological niches. The ISME Journal advance online publication 24 October 2013; doi: 10.1038/ismej.2013.191.

300. Leshin L.A., Mahaffy P.R., Webster C.R., Cabane M., Coll P., Conrad P.G., Archer, Jr. P.D., Atreya S.K., Brunner A.E. Buch A., Eigenbrode J.L., Flesch G.J., Franz H.B., Freissinet C., Glavin D.P., McAdam A.C., Miller K.E., Ming6 D.W. Morris R.V., Navarro-González R., Niles P.B., Owen T., Pepin R.O., Squyres S., Steele A., Stern J.C., Summons R.E., Sumner D.Y., Sutter B., Szopa C., Teinturier S., Trainer M.G., Wray J.J., and Grotzinger J.P., 2013. The First Volatile, Isotope and Organic Analysis of Solid Samples with the Mars Curiosity Rover: Insights into Martian Fines. Science 341 (no. 6153) [DOI: 10.1126/science.1238937].

301. Glavin, D. P., Freissinet, C., Miller, K. E., Eigenbrode, J. L., Brunner, A. E., Buch, A., Sutter, B., Archer, P. D., Atreya, S. K., Brinckerhoff, W. B., Cabane, M., Coll, P., Conrad, P. G., Coscia, D., Dworkin, J. P., Franz, H. B., Grotzinger, J. P., Leshin, L. A., Martin, M. G., McKay, C., Ming, D. W., Navarro-González, R., Pavlov, A., Steele, A., Summons, R. E., Szopa, C., Teinturier, S., and Mahaffy, P. R., 2013, Evidence for perchlorates and the origin of chlorinated hydrocarbons detected by SAM at the Rocknest aeolian deposit in Gale Crater. Journal of Geophysical Research: Planets 118, 1955-1973. [DOI: 10.1002/jgre.20144].

302. Jahnke L.L, Turk-Kubo K.A., Parenteau M.N., Green S.J., Kubo M.D.Y, Vogel M., Summons R.E. and Des Marais D.J., 2013. Molecular and Lipid Biomarker Analysis of a Gypsum-hosted Endoevaporitic Microbial Community. Geobiology 12, 62-82.

303. Grabenstatter J., Méhay S., McIntyre-Wressnig A., Giner J.-L., Edgcomb V.P., Beaudoin D.J., Bernhard J.M. and Summons R.E., 2013. Identification of 24-n-propylidenecholesterol in a member of the Foraminifera. Organic Geochemistry 63, 145–151.

304. Sessions, A.L., Zhang, L., Welander, P.V., Doughty, D., Summons, R.E. and Newman, D.K. (2013) Identification and quantification of polyfunctionalized hopanoids by high temperature gas chromatography–mass spectrometry. Organic Geochemistry 56, 120-130.

305. Glass, K., Ito, S., Wilby, P.R., Sota, T., Nakamura, A., Russell Bowers, C., Miller, K.E., Dutta, S., Summons, R.E., Briggs, D.E.G., Wakamatsu, K., Simon, J.D., 2013. Impact of diagenesis and maturation on the survival of eumelanin in the fossil record. Organic Geochemistry 64, 29-37.

306. Lee, C., Fike, D. A., Love, G. D., Sessions, A. L., Grotzinger, J. P., Summons, R. E., and Fischer, W. W., 2013, Carbon isotopes and lipid biomarkers from organic-rich facies of the Shuram Formation, Sultanate of Oman. Geobiology11, 406-419.

307. Grotzinger, J. P., Sumner, D. Y., Kah, L. C., Stack, K., Gupta, S., Edgar, L., Rubin, D., Lewis, K., Schieber, J., Mangold, N., Milliken, R., Conrad, P. G., DesMarais, D., Farmer, J., Siebach, K., Calef, F., Hurowitz, J., McLennan, S. M., Ming, D., Vaniman, D., Crisp, J., Vasavada, A., Edgett, K. S., Malin, M., Blake, D., Gellert, R., Mahaffy, P., Wiens, R. C., Maurice, S., Grant, J. A., Wilson, S., Anderson, R. C., Beegle, L., Arvidson, R., Hallet, B., Sletten, R. S., Rice, M., Bell, J., Griffes, J., Ehlmann, B., Anderson, R. B., Bristow, T. F., Dietrich, W. E., Dromart, G., Eigenbrode, J., Fraeman, A., Hardgrove, C., Herkenhoff, K., Jandura, L., Kocurek, G., Lee, S., Leshin, L. A., Leveille, R., Limonadi, D., Maki, J., McCloskey, S., Meyer, M., Minitti, M., Newsom, H., Oehler, D., Okon, A., Palucis, M., Parker, T., Rowland, S., Schmidt, M., Squyres, S., Steele, A., Stolper, E., Summons, R., Treiman, A., Williams, R., Yingst, A., and Team, M. S.

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L. S., 2013, A Habitable Fluvio-Lacustrine Environment at Yellowknife Bay, Gale Crater, Mars: Science 343, 1242777Published online 9 December 2013 [DOI:10.1126/science.1242777].

308. Ming, D. W., Archer, P. D., Glavin, D. P., Eigenbrode, J. L., Franz, H. B., Sutter, B., Brunner, A. E., Stern, J. C., Freissinet, C., McAdam, A. C., Mahaffy, P. R., Cabane, M., Coll, P., Campbell, J. L., Atreya, S. K., Niles, P. B., Bell, J. F., Bish, D. L., Brinckerhoff, W. B., Buch, A., Conrad, P. G., Des Marais, D. J., Ehlmann, B. L., Fairén, A. G., Farley, K., Flesch, G. J., Francois, P., Gellert, R., Grant, J. A., Grotzinger, J. P., Gupta, S., Herkenhoff, K. E., Hurowitz, J. A., Leshin, L. A., Lewis, K. W., McLennan, S. M., Miller, K. E., Moersch, J., Morris, R. V., Navarro-González, R., Pavlov, A. A., Perrett, G. M., Pradler, I., Squyres, S. W., Summons, R. E., Steele, A., Stolper, E. M., Sumner, D. Y., Szopa, C., Teinturier, S., Trainer, M. G., Treiman, A. H., Vaniman, D. T., Vasavada, A. R., Webster, C. R., Wray, J. J., Yingst, R. A., and Team, M. S. L. S., 2013, Volatile and Organic Compositions of Sedimentary Rocks in Yellowknife Bay, Gale Crater, Mars. Science 343, 1245267Published online 9 December 2013 [DOI:10.1126/science.1245267].

309. Biller S.J., Schubotz F., Roggensack S.E., Thompson A.W., Summons R.E., Chisholm S.W., 2014. Bacterial vesicles in marine ecosystems. Science 343, 183-186. [DOI:10.1126/science.1243457].

310. French, K. L., Sepúlveda, J., Trabucho-Alexandre, J., Gröcke, D. R., and Summons, R. E., 2014, Organic geochemistry of the early Toarcian oceanic anoxic event in Hawsker Bottoms, Yorkshire, England. Earth and Planetary Science Letters 390, 116-127.

311. Arreguin-Rodriguez, G.J., Alegret L., Sepúlveda J., Newman S. and Summons R.E., 2014. Enhanced terrestrial input supporting the Glomospira acme across the Paleocene‐Eocene boundary in Southern Spain. Micropaleontology 60, 43-51.

312. Aponte J.C., Tarozo R., Alexandre M.R., Alexander C.M. O’D, Charnley S.B, Hallmann C. Summons R.E. and Huang Y., 2014. Chirality of meteoritic free and IOM-derived monocarboxylic acids and implications for prebiotic organic synthesis. Geochimica et Cosmochimica Acta http://dx.doi.org/10.1016/j.gca.2014.01.035

313. Ghisalberti M., Gold D., Laflamme M., Clapham M., Narbonne G., Summons R.E., Johnston D.T., Jacobs D.K., 2014. Canopy Flow Models Identify the Advantage of Size in the Oldest Communities of Multicellular Eukaryotes, Current Biology 24, 305-309.

314. Briggs D.E.G. and Summons R.E., 2014. Ancient biomolecules: their origin, fossilization and significance in revealing the history of life. BioEssays 36, 482–490.

315. Lincoln, S.A., Wai, B., Eppley, J.M., Church, M.J., Summons, R.E. and DeLong, E.F., 2014. Planktonic Euryarchaeota are a significant source of archaeal tetraether lipids in the ocean. Proceedings of the National Academy of Sciences 111, 9858-9863.

316. Sistiaga, A., Mallol, C., Galván, B., and Summons, R. E., 2014, The Neanderthal Meal: a New Perspective Using Faecal Biomarkers. PLOS ONE 9(6): e101045. doi:10 1371/journal.pone.0101045

317. Illing, C.J., Hallmann, C., Miller, K.E., Summons, R.E. and Strauss, H., 2014. Airborne hydrocarbon contamination from laboratory atmospheres. Organic Geochemistry 76, 26-38.

318. Schmerk, C.L., Welander, P.V., Hamad, M.A., Bain, K.L., Bernards, M.A., Summons, R.E. and Valvano, M.A. (2014) Elucidation of the Burkholderia cenocepacia hopanoid biosynthesis pathway uncovers functions for conserved proteins in hopanoid-producing bacteria. Environmental Microbiology, [DOI: 10.1111/1462-2920.12509].

319. Lincoln, S.A., Wai, B., Eppley, J.M., Church, M.J., Summons, R.E. and DeLong, E.F., 2014. Reply to Schouten et al.: Marine Group II planktonic Euryarchaeota are significant contributors to tetraether lipids in the ocean. Proceedings of the National Academy of Sciences 111, E4286-E4286.

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320. Rothman, D.H., Fournier, G.P., French, K.L., Alm, E.J., Boyle, E.A., Cao, C. and Summons, R.E., 2014. Methanogenic burst in the end-Permian carbon cycle. Proceedings of the National Academy of Sciences 111, 5462-5467.

321. Summons, R.E., Sessions, A.L., Allwood, A.C., Barton, H.A., Beaty, D.W., Blakkolb, B., Canham, J., Clark, B.C., Dworkin, J.P., Lin, Y., Mathies, R., Milkovich, S.M., and Steele, A. (2014) Planning considerations related to the organic contamination of martian samples and implications for the Mars 2020 rover. Astrobiology 14, 969-1027. [doi:10.1089/ast.2014.1405].

322. Summons, R.E., 2014. The exceptional preservation of interesting and informative biomolecules. In: Reading and Writing of the Fossil Record: Preservational Pathways to Exceptional Fossilization. The Paleontological Society Papers, Volume 20, Marc Laflamme, James D. Schiffbauer, and Simon A. F. Darroch (eds.). The Paleontological Society Short Course, October 18, 2014.

323. Tulipani, S., Grice, K., Greenwood, P., Schwark, L., Bӧttcher, M.E., Summons, R.E., Foster, C.B., 2014. Changes of palaeoenvironmental conditions recorded in Late Devonian reef systems from the Canning Basin, Western Australia: A biomarker and stable isotope approach. Gondwana Research, 28, 1500–1515. doi:10.1016/j.gr.2014.10.003.

324. Tulipani, S., Grice, K., Greenwood, P., Schwark, L., Bӧttcher, M.E., Summons, R.E., Foster, C.B., 2015. Molecular Proxies as Indicators of Freshwater Incursion-Driven Salinity Stratification. Chemical Geology 20, 61–68. doi:10.1016/j.chemgeo.2015.05.009

325. Luo, G., Hallmann, C., Xie, S., Ruan, X. and Summons, R.E. (2015) Comparative microbial diversity and redox environments of black shale and stromatolite facies in the Mesoproterozoic Xiamaling Formation. Geochimica et Cosmochimica Acta 151, 150-167.

326. Kasprak, A.H., Sepulveda, J., Price-Waldman, R., Williford, K.H., Schoepfer, S.D., Haggart, Ward P.D., Summons, R.E., Whiteside, J.H., 2015. Pervasive photic zone euxinia in the northeastern Panthalassic Ocean during the end-Triassic extinction. Geology 43, 307-310.

327. French, K.L., Rocher, D., Zumberge, J.E. and Summons, R.E., 2015. Assessing the distribution of sedimentary C40 carotenoids through time. Geobiology 13, 139–151. [DOI: 10.1111/gbi.12126].

328. Schubotz F., Hays, L.E., Meyer-Dombard D.R., Gillespie, A., Shock E.L., Summons R.E., 2015. Stable isotope labeling confirms mixotrophic nature of streamer biofilm communities at alkaline hot springs. Frontiers in Microbiology 6, Article 42. [doi: 10.3389/fmicb.2015.00042].

329. Srain, B., Sepúlveda, J., Pantoja, S., Summons, R. E., Quiñones, R. A., Levipan, H., 2015. Archaeal and bacterial assemblages in the Oxygen Minimum Zone of the upwelling ecosystem off Central Chile as determined by organic biomarkers. Gayana 79, 26-44.

330. Escobedo-Hinojosa, W.I., Vences-Guzmán, M.A., Schubotz, F., Sandoval-Calderón, M., Summons, R.E., López-Lara, I.M., Geiger, O., Sohlenkamp, C., 2015. OlsG (Sinac_1600) is an ornithine lipid N-methyltransferase from the planctomycete Singulisphaera acidiphila. J. Biol. Chem. jbc.M115.639575. First Published on April 29, 2015, doi:10.1074/jbc.M115.639575.

331. French, K.L., Hallmann, C., Hope, J.M., Schoone, P.L., Zumberge J.A., Hoshino, Y., Peters, C.A., George, S.C., Love, G.D., Brocks, J.J., Buick, R. and Summons, R.E., 2015. Reappraisal of hydrocarbon biomarkers in Archean rocks. Proceedings of the National Academy of Sciences 112(19), 5915-5920.

332. Beaupré, S.R., Roberts, M.L., Burton, J.R., Summons, R.E., 2015. Rapid, high-resolution 14C chronology of ooids. Geochimica et Cosmochimica Acta, 159, 126–138. doi:10.1016/j.gca.2015.03.009

333. Martindale, R.C., Strauss, J.V., Sperling, E.A., Johnson, J.E., Van Kranendonk, M.J., Flannery, D., French, K., Lepot, K., Mazumder, R., Rice, M.S., Schrag, D.P., Summons, R., Walter, M., Abelson, J. and Knoll, A.H. (2015) Sedimentology, chemostratigraphy, and stromatolites of lower

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Paleoproterozoic carbonates, Turee Creek Group, Western Australia. Precambrian Research 266, 194-211.

334. Sistiaga, A., Wrangham. R., Rothman, J., Summons R.E., 2015. New insights into the evolution of the human diet from faecal biomarker analysis in wild chimpanzee and gorilla faeces. PLOS ONE 10(6): e0128931. doi:10.1371/journal.pone.0128931

335. Baesman S.M., Miller L.G., Wei J.H., Yirang Cho, Matys E.D., Summons R.E, Welander P.V, Oremland R.,S. 2015. Methane oxidation and molecular characterization of methanotrophs from a former mercury mine impoundment. Microorganisms 2015, 3, 290-309; doi:10.3390/microorganisms3020290.

336. Srain, B., Pantoja, S., Sepúlveda, J., Lange, C.B., Muñoz, P., Summons, R.E., McKay, J. and Salamanca, M., 2015. Interdecadal changes in intensity of the oxygen minimum zone off Concepción, Chile (~ 36° S), over the last century. Biogeosciences 12, 6045–6058.

337. Bender M., M. Schmidtmann, M. Summons, R.E., Rullkötter, J., Christoffers, J., 2015. A Geomimetic Approach to the Formation and Identification of Fossil Sterane Biomarkers in Crude Oil: 18-nor-D-homo-Androstane and 5α,14β-Androstane. Chem. Eur. J. 2015, 21, 12501– 12508. 10.1002/chem.201502148.

338. Miller K.E, Kotrc B., Summons R.E., Belmahdi I., Buch A., Eigenbrode J.L., Freissinet C., Glavin D.P., Szopa C. 2015. Evaluation of the Tenax trap in the Sample Analysis at Mars instrument suite on the Curiosity rover as a potential hydrocarbon source for chlorinated organics detected in Gale Crater. JGR Planets, 120, 1446–1459.

339. Love G.D. and Summons R.E., 2015. The molecular record of Cryogenian sponges – a response to Antcliffe (2013). Paleontology 58, 1131–1136. Article first published online: 10 SEP 2015, DOI: 10.1111/pala.12196

340. Williford, K. H., Ushikubo, T., Lepot, K., Kitajima, K., Hallmann, C., Spicuzza, M. J., Kozdon, R., Eigenbrode, J. L., Summons, R. E. and Valley, J. W., 2015. Carbon and sulfur isotopic signatures of ancient life and environment at the microbial scale: Neoarchean shales and carbonates. Geobiology. doi:10.1111/gbi.12163

341. Carrasquillo, A.J., Cao, C., Erwin, D.H. and Summons, R.E., 2016. Non-detection of C60 fullerene at two mass extinction horizons. Geochimica et Cosmochimica Acta 176, 18-25. http://dx.doi.org/10.1016/j.gca.2015.12.017

342. Miller K.E, Eigenbrode J.L., Freissinet C., Glavin D.P., Kotrc B., Francois P. and Summons R.E., 2016. Potential precursor compounds for chlorohydrocarbons detected in Gale Crater, Mars, by the SAM instrument suite on the Curiosity Rover. JGR Planets, 121, 296-308. Doi: 10.1002/2015JE004939.

343. Liu X.-L., De Santiago Torio A., Bosak T and Summons R.E., 2016. Novel cyclohexyl ring containing archaeal tetraether lipids identified in Green Lake and other terrestrial sulfidic deposits. Rapid Communications in Mass spectrometry 30, 1197-1205.

344. Liu X.L., Birgel D., Elling F.J., Sutton P.A., Lipp J.S., Zhu R., Zhang C., Könneke M., Peckmann J., Rowland S.J., Summons R.E., and Hinrichs K.-U., 2016. From ether to acid: a plausible degradation pathway of glycerol dialkyl glycerol tetraethers. Geochimica et Cosmochimica Acta 183, 138-152.

345. Gold D.A., Grabenstatter J., de Mendoza A., Riesgo A., Ruiz-Trillo I. and Summons R.E., 2016.Sterol and Genomic Analyses Validate the Sponge Biomarker Hypothesis. Proceedings of the National Academy of Sciences. doi/10.1073/pnas.1512614113.

346. Luo G., Ono S., Beukes N.J, Wang D.T., Xie S. and Summons R.E., 2016. Rapid oxidation of Earth’s atmosphere 2.33 billion years ago. Science Advances 2: e1600134.

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347. Ferralis, N. Matys, E.D., Knoll, A.H., Hallmann, C. and Summons, R.E., 2016. Rapid, direct and non-destructive assessment of fossil organic matter via microRaman spectroscopy. Carbon 108 440 - 449.

348. Gold D.A., O’Reilly S.S., Luo G., Briggs D.E.G. and Summons R.E. 2016. Prospects for sterane preservation in sponge fossils from museum collections, and the utility of sponge biomarkers for molecular clocks. Bulletin of the Yale Peabody Museum of Natural History 57, 181-189.

349. Buchanan B.B., Douce R., Govindgee, Lichtenthaler H.K. and Summons R.E. 2016. Andrew A. Benson 1917-2015, A Biographical Memoir. National Academy of Sciences of the USA.

350. O’Reilly S.S., Mariotti G., Winter A.R., Newman S., Matys E.D., McDermott F., Pruss S.B., Summons R.E., Klepac-Ceraj V. and Bosak T., 2016. Molecular biosignatures reveal common benthic microbial sources of organic matter in ooids and grapestones from Pigeon Cay, The Bahamas. Geobiology 15, 112–130. DOI: 10.1111/gbi.12196

351. Wilhelm M.B, Davila A.F., Eigenbrode J.L., Mary Parenteau N., Jahnke L.L., Liu X.-L., Summons R.E., Wray J.J., Stamos B.N, O’Reilly S.S. and Williams A., 2017. Xeropreservation of functionalized lipid biomarkers in hyperarid soils in the Atacama Desert. Organic Geochemistry 103, 97–104.

352. Gold D.A., Caron A.M., Fournier G. and Summons R.E., 2017. Paleoproterozoic sterol biosynthesis and the rise of oxygen. Nature 543, 420-423.

353. Bhattacharya S., Dutta S. and Summons R.E., 2017. A distinctive biomarker assemblage in InfraCambrian oil and source rock from western India: Molecular signatures of eukaryotic sterols and prokaryotic carotenoids. Precambrian Research 290, 101–112.

354. Hamilton T.L., Welander P.V., Albrecht H.L., Fulton J.M., Schaperdoth I., Bird L.R., Summons R.E., Freeman K.H. and Macalady J.L., 2017. Microbial communities and organic biomarkers in a Proterozoic-analog sinkhole. Geobiology 15, 784–797.

355. Saitta E.T., Rogers C., Richard A. Brooker R.A., Abbott G.D., Kumar S., O’Reilly S.S., Donohoe P, Dutta S., Summons R.E., and Vinther J., 2017. Low fossilization potential of keratin protein revealed by experimental taphonomy. Paleontology 60, 547-556.

356. Matys E.D., Sepúlveda, J., Pantoja, S., Lange, C.B., Caniupan M., Lamy F. and Summons, R.E., 2017. Bacteriohopanepolyols along redox gradients in the Humboldt Current System off northern Chile. Geobiology doi: 10.1111/gbi.12250.

357. Garby T.J., Matys E.D., Ongley S.E., Salih A., Larkum A.W.D., Walter M.R., Summons R.E. and Neilan B.A., 2017. Lack of methylated hopanoids renders the cyanobacterium Nostoc punctiforme sensitive to osmotic and pH stress. Applied and Environmental Microbiology 83, doi:10.1128/AEM.00777-17.

358. Brown C.M., Henderson D.M., Vinther J., Fletcher I., Sistiaga A., Herrera J. and Summons R.E. (2017) An Exceptionally Preserved Three-Dimensional Armored Dinosaur Reveals Insights into Coloration and Cretaceous Predator-Prey Dynamics. Current Biology. DOI: http://dx.doi.org/10.1016/j.cub.2017.06.071

359. Franz, H.B., McAdam, A.C., Ming, D.W., Freissinet, C., Mahaffy, P.R., Eldridge, D.L., Fischer, W.W., Grotzinger, J.P., House, C.H., Hurowitz, J.A., McLennan, S.M., Schwenzer, S.P., Vaniman, D.T., Archer Jr, P.D., Atreya, S.K., Conrad, P.G., Dottin Iii, J.W., Eigenbrode, J.L., Farley, K.A., Glavin, D.P., Johnson, S.S., Knudson, C.A., Morris, R.V., Navarro-Gonzalez, R., Pavlov, A.A., Plummer, R., Rampe, E.B., Stern, J.C., Steele, A., Summons, R.E. and Sutter, B. (2017) Large sulfur isotope fractionations in Martian sediments at Gale crater. Nature Geoscience 10, 658-633.

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360. Gold D., O'reilly S., Watson J., Degnan B., Degnan S., Krömer J. and Summons R. E., 2017. Lipidomics of the sea sponge Amphimedon queenslandica and implications for biomarker geochemistry. Geobiology 15, 836-843. DOI: 10.1111/gbi.12253

361. O’Reilly S.S., Summons R.E., Mayr G. and Vinther J., 2017. Molecular preservation of uropygial gland lipids in a 48-million-1 year-old bird. Proceedings of the Royal Society B 284: 20171050. http://dx.doi.org/10.1098/rspb.2017.1050

362. Summons R.E., 2017. Precambrian Organic Matter. Earth Science Series. Encyclopedia of Geochemistry, Springer. doi:10.1007/978-3-319-39193-9_191-1.

363. Flannery D.T., Allwood A.C., Summons R.E., Williford K.H., Abbey W., Matys E.D., Ferralis N. 2018. Spatially-resolved isotopic study of carbon trapped in ~3.43 Ga Strelley Pool Formation stromatolites. Geochimica et Cosmochimica Acta 223, 21-35.

364. Liu X.L., Lipp J.S., Birgel D., Summons R.E., and Hinrichs K.-U., 2018. Predominance of the parallel glycerol arrangement in archaeal tetraethers from marine sediments: structural features revealed by degradation products. Organic Geochemistry 115, 12-23.

365. Carr S.A., Schubotz F.L., Dunbar R.B., Mills C.T., Dias R., Summons R.E., Mandernack K.W., 2017. Methanogenic Methanosaeta and their role in carbon cycling in methane-rich marinesediments of Antarctica. The ISME journal doi:10.1038/ismej.2017.150

366. Luo G., Junium C., Gareth Izon G., Ono S., Beukes N.J., Algeo T.J., Cui Y., Xie S., Summons R.E. 2018. Dynamic Evolution of the Marine Nitrogen Cycle in Response to Planetary Oxygenation. Nature Communications 9, 978. DOI: 10.1038/s41467-018-03361-2

367. McMahon S., Bosak T., Grotzinger J.P., Milliken R.E., Summons R.E., Daye M., Newman S.A., Fraeman, A., Williford K. H., Briggs D.E.G., 2018. A Field Guide to Finding Fossils on Mars. JGR Planets https://doi.org/10.1029/2017JE005478.

368. Flannery, D.T., Summons R.E., Walter M.R., 2018. Archean Lakes as Analogues for Habitable Martian Paleoenvironments. In Cabrol N. (Ed) “Habitability and Life on Mars”, Elsevier.

369. Hawes I., Jungblut A.D., Matys E.D. and Summons R.E., 2018. The ‘Dirty Ice’ of the McMurdo Ice Shelf: Analogues for biological oases during the Cryogenian. Geobiology (Available online) DOI: 10.1111/gbi.12280.

370.Spaak, G., Edwards, D.S., Foster, C.B., Pagès, A., Summons, R.E., Sherwood, N. and Grice, K., 2017. Environmental conditions and microbial community structure during the Great Ordovician Biodiversification Event; a multi-disciplinary study from the Canning Basin, Western Australia. Global and Planetary Change 159, 93-112.

371. Mariotti G., Pruss S.B., Summons R.E., Newman S.A. and Bosak T., 2018. Contribution of benthic processes to the growth of ooids on a low-energy shore in Cat Island, The Bahamas. Minerals 8, 252; doi:10.3390/min8060252

372. Spaak, G., Edwards, D.S., Allen, H.J., Grotheer, H., Summons, R.E., Coolen, M.J. and Grice, K., 2018. Extent and persistence of photic zone euxinia in Middle–Late Devonian seas–Insights from the Canning Basin and implications for petroleum source rock formation. Marine and Petroleum Geology 93, 33-56.

373. Eigenbrode, J.L., Summons, R.E., Steele, A., Freissinet, C., Millan, M., Navarro-González, R., Sutter, B., McAdam, A.C., Franz, H.B., Glavin, D.P. and Archer, P.D., 2018. Organic matter preserved in 3-billion-year-old mudstones at Gale crater, Mars. Science 360(6393), 1096-1101.

374. Luo, G., Yang, H., Algeo, T.J., Hallmann, C. and Xie, S. (2018) Lipid biomarkers for the reconstruction of deep-time environmental conditions. Earth-Science Reviews (In Press).

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375. Zumberge J.A., Love G.D., Cárdenas P., Sperling E.A., Gunasekera S., Rohrssen M., Grosjean E., Grotzinger J.P. and Summons R.E., 2018. A novel demosponge steroid biomarker from Neoproterozoic strata. Nature Geoscience (In Review).

376. Wilhelm M.B., Davila A.F., Parenteau M.N., Jahnke L.L., Abate M., Cooper G., Kelly E.T., Parro García V., Villadangos M.G., Blanco Y., Glass B., Wray J.J., Eigenbrode J.L., Summons R.E. and Warren-Rhodes K., 2018. Constraints on the Metabolic Activity of Microorganisms in Atacama Surface Soils Inferred from Refractory Biomarkers: Implications for Martian Habitability and Biomarker Detection. Astrobiology (In Press).

377. Lengger S.K., Melendez I.M., Summons R.E. and Grice K., 2018. Mudstones and embedded nodules show differences in maturity-related, but not source-related biomarker distributions. Organic Geochemistry, (In Review).

378. Saitta E.T., Fletcher I., Pittman M., Kaye T.G., Davidson A., True L.D., Norell M.A., Abbott G.D., Summons R.E., Penkman K., and Vinther J., 2018. Preservation of fossil feather fibres raises concern about the significance of immunohistochemical experiments on fossil tissues. Organic Geochemistry (In Review).

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