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The top documents tagged [ediacara biota]
Figure 14.1 Some of the main arthropod groups: a variety of forms based on a simple body plan of a tough exoskeleton and jointed limbs
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Figure 10.1 Time scale and tempo of early animal evolution: the key metazoan groups are shown with the putative age of their last common ancestor, together
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Figure 10.1
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Wrinkled Sandstone: Missourian Wann Formation, Lake Keystone, Oklahoma R.W. Scott & W. Cornell, Geosciences Department, University of Tulsa Graphic log
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