REPTILE COPROLITE - FROM THE EOCENE, WYOMING, USA.

Reptile coprolite.

Matrix free coprolite from a reptile. Most likely from one of several species of turtle that occur in the green River formation. Otherwise it could be from one of the 2 Crocodilians that also occur. Unusual. 

Eocene, Green River Formation, Fossil Butte Member.
Farson, Wyoming, USA.

Coprolite : 3.3 cm long.