2009年5月12日

Fossil-sponge or bryozoan?


In my field work, I found many fossils that I could not know! Here is a beautiful one in limestone from Permian, looks like an earthworm, maybe some bryozoan. Any one who knows this fossil, please leaves me a message, thanks!
The tag is about 1 centimeter.

Here is a great web site about bryozoans. Recent and Fossil Bryozoa.