Cephalopoda - Ceratitida - Hellenitidae
Full reference: J. Guex, A. Hungerbühler, J. Jenks, D. Taylor, and H. Bucher. 2005. Dix-neuf nouvelles espèces d’ammonites du Spathien (Trias inférieur) de l’ouest américain (Idaho, Nevada, Utah et Californie) : Note préliminaire. Bulletin de Géologie Lausanne 363:1-28
Belongs to Hellenites according to M. Ehiro et al. 2016
See also Guex et al. 2005 and Guex et al. 2010
Sister taxa: Hellenites (Pallasites), Hellenites compressus, Hellenites idahoense, Hellenites inopinatus, Hellenites praematurus, Hellenites radiatus, Hellenites subpraematurus, Hellenites tchernyschewiensis
Type specimen: JGX-503. Its type locality is Hammond Creek JGX-ALPHA-HC, which is in a Spathian marine limestone in the Thaynes Formation of Idaho.
Ecology: nektonic carnivore
Average measurements (in mm): shell diameter 17.3
Distribution:
• Triassic of Japan (1 collection), United States (1: Idaho)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.