Carcinosoma newlini Arthropod Fossil

This large Silurian fossil is of a Carcinosoma newlini eurypterid. Fossil was found in the Kokomo Limestone of Indiana and is housed at the Indiana State Museum (Indianapolis). Creature swam the seas that covered the state in the Late Silurian Period.

Note: there is a shadow across the fossil causing one side to be darker than the other.

Learn more about this type creature on Wikipedia.

Learn more about the Indiana State Museum at their web site.

Dorycrinus gouldi Crinoid Calyx

Dorycrinus gouldi crinoid calyx and stem on display at the Indiana State Museum (Indianapolis - May 2012). This fossil is part of a larger and quite impressive Mississippian period crinoid display on the first floor of the museum. If Indiana had a state fossil, it would probably be a crinoid from Crawsfordsville, Indiana. Learn more about the museum at their web site.

Platystrophia ponderosa Brachiopod - Kentucky

Platystrophia ponderosa brachiopod found in McMillan Formation of Spencer County, Kentucky. Creature lived in the Ordovician Period. The brachiopod is the state fossil of Kentucky.