Cephalopoda - Pseudorthocerida - Spyroceratidae
Alternative combination: Orthoceras zonatum
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 Bitaunioceras according to S. Niko et al. 1996
See also Gemmellaro 1889
Sister taxa: Bitaunioceras buckhornense, Bitaunioceras coahuilense, Bitaunioceras inordinatum, Bitaunioceras krotowi, Bitaunioceras texanum, Bitaunioceras undulatum
Average measurements (in mm): shell diameter 14.6
Distribution:
• Permian of Italy (3 collections), Oman (1)
Total: 4 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.