Priscacara clivosa Fish Fossil

The fish fossil Priscacara clivosa found in Wyoming (probably Green River Formation).  It lived in the Early Eocene (50 million years ago).  Picture taken in August 2010 at the Smithsonian Museum of Natural History in Washington, D.C.

Forbesiocrinus multibrachiatus Crinoid

This crinoid calyx with a long stem piece attached is the Forbesiocrinus multibrachiatus.  Existing in the early Mississippian Period (345-325 million years ago, Osagean stage) and found in Indiana (probably Crawsfordsville, Edwardsville Formation).  Fossil image created in August 2010 at the Smithsonian Museum of Natural History in Washington, D.C.

Anastrophia Brachiopod

Waldron Shale brachiopod found in Clark County, Indiana.  The creature existed in the Middle Silurian Period.  My best guess as to its identification is the Anastrophia.  If one looks at the third picture, showing it from a hinge view it has been compacted.  Refer to the Indiana State Museum collection record for this genus.