cheetham, a. h., j. sanner, and j. b. c. jackson. 2007. metrarabdotos and related genera (bryozoa:...
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Cheetham, A. H., J. Sanner, and J. B. C. Jackson. 2007. Metrarabdotos andRelated Genera (Bryozoa: Cheilostomata) in the Late Paleogene and Neogene ofTropical America. Paleontological Society Memoir 67, Supplement to Journal ofPaleontology, 81(1)Author(s): Alanh CheethamSource: Journal of Paleontology, 84(1):157-157. 2010.Published By: The Paleontological SocietyDOI: http://dx.doi.org/10.1666/09-103.1URL: http://www.bioone.org/doi/full/10.1666/09-103.1
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ERRATUM
CHEETHAM, A. H., J. SANNER, AND J. B. C. JACKSON. 2007.METRARABDOTOS AND RELATED GENERA (BRYOZOA:
CHEILOSTOMATA) IN THE LATE PALEOGENE AND NEOGENE OFTROPICAL AMERICA. PALEONTOLOGICAL SOCIETY MEMOIR 67,
SUPPLEMENT TO JOURNAL OF PALEONTOLOGY, 81(1).
ALAN H. CHEETHAM3101 Old Pecos Trail, Unit 647, Santa Fe, New Mexico 87505, ,[email protected].
BECAUSE OF a typographical error and errors in calculation,values for the statistics reported in the caption of Figure
10 are incorrect. Correct values are as follows:Null hypothesis that change across species is equal to
change within: t 5 4.487, P , 0.001 with 28 degrees offreedom; F 5 20.726, P , 0.01 with 14 degrees of freedom.
Alternative hypothesis that change within species is zero:t 5 20.1835, P . 0.9 with 12 degrees of freedom.
As before, the null hypothesis is rejected in both tests andthe alternative hypothesis is accepted. Thus the conclusions inthe paper remain the same.
I thank Amalia Herrera Cubilla for finding the errors.
J. Paleont., 84(1), 2010, p. 157
Copyright ’ 2010, The Paleontological Society
0022-3360/10/0084-0157$03.00
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