Above is an image of a soft-shelled turtle fossil called  Trionyx sp.  (Geoffroy Saint-Hilaire, 1809). This turtle fossil dates to the Eoc...

For some reason I am obsessed with figuring out the name of the fish on the top of David Dale Owen's (1807-1860) last laboratory buildi...

  Above is an image of a fish fossil called  Diplomystus dentatus  (Cope, 1877). This fish fossil dates to the Eocene Epoch between 54.8 and...