Cephalopoda - Orthocerida - Orthoceratidae

Full reference: G. G. Gemmellaro. 1889. La Fauna dei Calcari Con Fusulina della Valle del Fiume Sosio nella Provincia di Palermo, Fasc 2. Nautiloidea e Gastropoda. Giornale di Scienze Naturali e Economiche 20:97-182

Belongs to Orthoceras according to G. G. Gemmellaro 1889

Sister taxa: Orthoceras blakei, Orthoceras burgense, Orthoceras decrescens, Orthoceras elegantulum, Orthoceras elongatocinctum, Orthoceras expansum, Orthoceras gradatum, Orthoceras hulli, Orthoceras luhai, Orthoceras oehlerti, Orthoceras orientale, Orthoceras punjabiense, Orthoceras rachidium, Orthoceras shastense, Orthoceras siculum, Orthoceras spissiseptum, Orthoceras subtriangulare, Orthoceras vesiculosum, Orthoceras waageni, Orthoceros regularis

Type specimen: Its type locality is Rocca di San Benedetto, calcare compatto, Sosio, which is in a Wordian carbonate limestone in Italy

Ecology: nektonic carnivore

Average measurements (in mm): shell length 77.5, shell diameter 11.4