Starfish and Crinoids from Indiana

Indiana State Museum has a number of beautiful fossils on display from Crawsfordville, Indiana. This pictures has a starfish fossil called Aganaster gregarius.  Crinoids shown are Barycrinus stellatus, Hylodecrinus briareus, and Aganaster gregarius.  They are found in the Edwardsville Formation and are from the Mississippian Period.