Thursday, July 13, 2006

Odontogriphus omalus and Kimberella

In my previous post on Odontogriphus omalus I mentioned that Kimberella is considered to be it's early molluscan relative. Since I have found a nice picture of feeding traces called Radulichnus probably produced by Kimberella that indicate that it had a radula and rasped away at microbial mats during the Ediacaran:

The Ichnofossil Radulichnus

This links Kimberella very clearly to Odontogriphus and to later molluscs.


Trace fossils in the Ediacaran–Cambrian transition: Behavioral diversification, ecological turnover and environmental shift
Adolf Seilachera, Luis A. Buatoisb, and M. Gabriela Mángano
Palaeogeography, Palaeoclimatology, Palaeoecology Volume 227, Issue 4 , 10 November 2005, Pages 323-356

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