Edrioasteroid: I. cincinnatiensis (PRI 76783)3D Model
Fossil specimen of the edrioasteroid Isorophus cincinnatiensis attached to the brachiopod Rafinesquina alternata; from the Ordovician of Ohio (PRI 76783). Specimen is from the collections of the Paleontological Research Institution, Ithaca, New York. Width of brachiopod is 4 cm. Model by Emily Hauf.