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Journal of the Geological Society; January 2007; v. 164; no. 1; p. 49-51; DOI: 10.1144/0016-76492006-080
© 2007 Geological Society of London
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Short Communication

Charnia and sea pens are poles apart

Jonathan B. Antcliffe and Martin D. Brasier

Department of Earth Sciences, University of Oxford, Parks Road, Oxford OX1 3PR, UK(e-mail: jonathanantcliffe@univ.ox.ac.uk)

Charnia from the Ediacara biota is here examined in terms of its growth and development. The Ediacara biota comes from the critical period of evolution just before the Cambrian Explosion and is key to our understanding of the origin of animal life. We show that Charnia cannot be related to the modern cnidarian group the sea pens (Pennatulacea) with which it has for so long been compared, as generative zones cannot be homologized between these forms.




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