Cephalopoda - Ammonitida - Arietitidae
Alternative combination: Ammonites semicostatum
Belongs to Arnioceras according to B. Geczy and C. Meister 2007
Sister taxa: Arnioceras arnouldi, Arnioceras bodleyi, Arnioceras ceratitoides, Arnioceras cuneiforme, Arnioceras fieldingiceroides, Arnioceras insolitum, Arnioceras mendax, Arnioceras miserabile, Arnioceras nevadanum, Arnioceras paucicostum, Arnioceras pseudokridion, Arnioceras pseudoturneri, Arnioceras rejectum, Arnioceras robustum, Arnioceras semilaeve, Arnioceras speciosum, Arnioceras transitionis, Arniotites stautei, Arniotites schmerbitzii, Arniotites vancouverensis
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 21.4
Distribution:
• Jurassic of Chile (14 collections), France (1), Germany (1), Hungary (1), Luxembourg (1), Mexico (1), the United Kingdom (7), United States (1: Nevada)
Total: 27 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.