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.

Fluorite-encrusted Gastropod from Cave in Rock, Illinois

Fossil Type:

Fluorite-encrusted Gastropod

Name:

Unidentified

Formation:

Ste. Genevieve

Age:

Basal Upper Mississippian

Location:

Cave in Rock, Hardin Co., Illinois

Notes:

Steinkern or internal mold in chert with fluorite, this is an unusual fossil due to its mineralization. Anonymous collection. Mark Schneider photo.

Date Posted:

May 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