Abrotocrinus coreyiPhylum Echinodermata, Class Cladida, Family Staphylinocrinidae Geological Time: Lower Mississippian Osagean Stage (345 m.y.a) Size: Crown: 27 mm long by 18 mm wide, stem: 38 mm;on a 66 mm by 80 mm matrix Fossil Site: Crawfordsville, Indiana |
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