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Onychocrinus exsculptus Lyon and Casseday, 1860 3D Model
CMNH 2508 Onychocrinus exsculptus Lyon and Casseday, 1860
Locality: Crawfordsville, Montogomery Co., Indiana
Crinoids, often misleadingly called “sea lilies,” are extant (living), marine filter-feeders which latch onto surfaces underwater using holdfasts at the distal end of their column. A crinoid’s arms extend out from its cup or calyx, the cone-shaped structure at the end of its column. These organisms survive by catching small particles of food with their arms and pulling these scraps into their mouths. Don’t let the flower-like shape of this “lily” deceive you - crinoids are actually animals. (William Ausich 1996, “Phylum Echinodermata”)