Fossils at the Louisville Zoo - Part 2

The Louisville Zoo has a Dinosaur exhibit on display till October 31, 2010.  Part of the display includes an exhibit sign with a number of fossils.  Unfortunately, the sign does not give exact names or locations of the fossils being shown. 

Leaf fossils from an unidentified location.

The sign identifies this last fossil as a plate of fish fossils from Wyoming thus it is probably from Green River Formation.  What type of fish they are, not sure.