Green River Formation fossil, Fossil Butte National Monument, 2016.
Summary
Crayfish lived in the shallow, near-shore water of Fossil Lake and are known only from Eocene lake deposits. The closest living relative of Procambarus is Austrocambarus, found in Mexico. This Procambarus primaevus specimen is approximately 5-cm long.
Tags
Date
2016
Source
National Parks Gallery
Copyright info
Public Domain Dedication