Platyceratidae
Classification Phylum: Mollusca Class: Gastropoda Order: Euomphalina Family: Platyceratidae (Hall, 1859) Cincinnatian Genera: Cyclonema Geologic Range Middle Ordovician – Middle Permian Common Paleoecology Platyceratidae is an extinct family of passively mobile epifaunal detritivores. Description of the Family Earlier members turbiniform …