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



Featured Fossil


This page features a fossil with details 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!

All geological time periods are represented.

Upper Mississippian Crinoid Zeacrinites wortheni

Fossil Type:



Zeacrinites wortheni (Hall)


Indian Springs Shale Member, Big Clifty Fm.


Chesterian, Upper Mississippian


Crawford Co., Indiana


Zeacrinites is common in the Chester-age formations and when found complete, is quite spectacular. Tennessee’s first state geologist, Gerard Troost, in the mid-19th century named it for corn (Zea) when one of his slaves suggested a specimen resembled a tiny petrified ear of corn. Kenny Popp specimen and photo. Featured Fossil on vacation until May 8.

Date Posted:

April 27, 2017


Archived Featured Fossils

Archived images are now arranged in each category by geological time period.

How to Submit a Featured Fossil

Created April 12, 2012