Coral - Thamnoptychia alternans

Here is a tabulated coral called Thamnoptychia alternans from the Devonian Period. It was found in Clark County, Indiana.

Crinoid Stem Eucladocrinus

Here is a piece of the crinoid stem called Eucladocrinus. It existed in the Mississippian Period. This one was found in Floyd County, Indiana.

Bryozoan Archimedes

Here is an Archimedes bryozoan from the Mississippian Period. It was found in Crawford County, Indiana. It has a great form that reminds one of the spiral of today's wood screw.