The Pentremites blastoid named by Thomas Say in 1825 (maybe in the Journal of Academy of Natural Sciences of Philadelphia, volume 4, p.294)...

A series Archimedes bryozoan fossils found in Crawford County, Indiana. These creatures existed in the Mississippian Period. When researc...

I am not sure about the identification of these Devonian Period gastropod fossils found in Clark County, Indiana.   These next tw...