1.7" Fossil Leaf (Caesalpinia) - Green River Formation, Colorado

Fossil Leaf (Caesalpinia) - Green River Formation, Colorado #244662

This is a 1.7" fossil leaf (Caesalpinia pecorae) from the Green River Formation of Colorado. It shows primary venation and the dark color of the leaf contrasts nicely against the cream colored shale. While the Green River Formation is best know for its fish fossils, other areas produce incredible plant fossils.

A note on Green River leaf identifications. Over 60 described leaf bearing plants have been identified from this formation, many of which have very similar leaves. We have done our best to provide identifications based on the resources available to us, but we are not paleobotany experts and cannot guarantee that all will be 100% correct.