Cephalopoda - Ammonitida - Arietitidae
Alternative combinations: Ammonites arnouldi, Epammonites arnouldi
Belongs to Arnioceras according to B. Geczy and C. Meister 2007
See also Rakús and Guex 2002 and Spath 1922
Sister taxa: 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 semicostatum, Arnioceras semilaeve, Arnioceras speciosum, Arnioceras transitionis, Arniotites stautei, Arniotites schmerbitzii, Arniotites vancouverensis
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 63.1
Distribution:
• Jurassic of Canada (7: British Columbia collections), France (1), Hungary (3), Mexico (2), Tunisia (1), the United Kingdom (2), United States (11: Alaska, 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.