Fossil crinoids, Indiana

Four (4) different crinoid species in one aesthetic composition. Present are Abrotocrinus coregi (labelled #1 in one of the photographs), Pachylocrinus aequalis (#35), Scytalocrinus disparillis (#42) and Paradichocrinus planus (#70). Mississippian (Osagean) age from Edwardsville Formation, Montgomery County, Indiana, USA. Dimensions 17 x 20.5 cm.