Gastropoda - Euomphalina - Platyceratidae
Alternative spelling: Platyceras (Strophostylus)
Synonym: Helictostylus Knight 1934 [objective synonym]
Full reference: J. Hall. 1860. Notes and observations upon the fossils of the Goniatite Limestone, in the Marcellus shale of the Hamilton group, and those of the Goniatite beds of Rockford, Indiana, with some analogous forms from the Hamilton Group proper. Annual report of the Regents of the University of the State of New York on the State Cabinet of Natural History and the Historical and Antiquarian collection annexed thereto 13:95-112
Parent taxon: Platyceratidae according to P. Bouchet et al. 2005
Sister taxa: Barynema, Basiplanus, Brokenriveria, Cancellator, Cancelloplatyceras, Compsonema, Crossoceras, Cyclonema, Devononema, Euthyrhachis, Himantonia, Lotzia, Naticellina, Naticonema, Naticonoda, Natirhenia, Nonorios, Obscuropsis, Paffrathia, Palaeocapulus, Platyceras, Platyschisma, Praenatica, Pseudorthonychiinae, Ptychospirina, Rhabdocantha, Spinyplatyceras, Spiranodus, Spironemella, Tachloconcha, Turbonellininae
Subtaxa: Strophostylus andrewsi, Strophostylus bivolve, Strophostylus cancellata, Strophostylus chesterensis, Strophostylus cyclostomus, Strophostylus elegans, Strophostylus elevatus, Strophostylus fitchi, Strophostylus girtyi, Strophostylus globosus, Strophostylus indicus, Strophostylus matheri, Strophostylus nevadensis, Strophostylus obtusus, Strophostylus sargalensis, Strophostylus tantillus, Strophostylus transversus, Strophostylus unica, Strophostylus wortheni
Type: Strophostylus andrewsi
Ecology: passively mobile epifaunal coprophage