Lower Cambrian vendobionts from China and early diploblast evolution

Shu, D. G. and Conway Morris, S. and Han, J. and Li, Y. and Zhang, X. L. and Hua, H. and Zhang, Z. F. and Liu, J. N. and Guo, J. F. and Yao, Y. and Yasui, K. (2006) Lower Cambrian vendobionts from China and early diploblast evolution. Science, 312 (5774). pp. 731-734. DOI https://doi.org/10.1126/science.1124565

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Ediacaran assemblages immediately predate the Cambrian explosion of metazoans and should have played a crucial role in this radiation. Their wider relationships, however, have remained refractory and difficult to integrate with early metazoan phylogeny. Here, we describe a frondlike fossil, Stromatoveris (S. psygmoglena sp. nov.), from the Lower Cambrian Chengjiang Lagerstätte (Yunnan, China) that is strikingly similar to Ediacaran vendobionts. The exquisite preservation reveals closely spaced branches, probably ciliated, that appear to represent precursors of the diagnostic comb rows of ctenophores. Therefore, this finding has important implications for the early evolution of this phylum and related diploblasts, some of which independently evolved a frondose habit.

Item Type: Article
Uncontrolled Keywords: 2006 AREP IA51 2006 P
Subjects: 04 - Palaeobiology
Divisions: 04 - Palaeobiology
Journal or Publication Title: Science
Volume: 312
Page Range: pp. 731-734
Identification Number: https://doi.org/10.1126/science.1124565
Depositing User: Sarah Humbert
Date Deposited: 16 Feb 2009 13:03
Last Modified: 23 Jul 2013 10:08
URI: http://eprints.esc.cam.ac.uk/id/eprint/687

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