Connecting the environment of the ancient past with the natural and cultural history of yesterday and today.



Featured Fossil


This page will feature fossils from all geological time periods. Each image will have

some background about the specimen, its age, where it was found, and a nugget

of interesting information. Not every specimen will be perfectly preserved -

but all are a marvel of the natural world!


Ptylodictya tenuis on Pseudoatrpya brachiopod shell

Fossil Type:



Ptylodictya tenuis (Hall)


Birdsong Shale


Emsian, Early Devonian


Decatur Co., Tennessee


This bryozoan has a distinctive “volcano” shape growing on the brachiopod Pseudoatrypa. Click here for a wider view. Anonymous collection. FOV = ~1 cm

Date Posted:

January 28, 2015


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Created April 12, 2012