Cephalopoda - Nautilida - Nautilidae
Full reference: B. Kummel. 1954. Jurassic nautiloids from western North America. Journal of Paleontology 28:320-324
Belongs to Eutrephoceras according to B. Kummel 1956
See also Kummel 1954
Sister taxa: Eutrephoceras (Simplicioceras), Eutrephoceras ahltenense, Eutrephoceras alcesense, Eutrephoceras allani, Eutrephoceras allionii, Eutrephoceras angolaense, Eutrephoceras antarcticum, Eutrephoceras astierianum, Eutrephoceras azraqensis, Eutrephoceras bellerophon, Eutrephoceras berryi, Eutrephoceras blanki, Eutrephoceras boissieri, Eutrephoceras bouchardianum, Eutrephoceras burundukhajense, Eutrephoceras carolinense, Eutrephoceras carolinensis, Eutrephoceras charpentieri, Eutrephoceras claramontanum, Eutrephoceras clementinum, Eutrephoceras dartevellei, Eutrephoceras darupense, Eutrephoceras decorum, Eutrephoceras dekayi, Eutrephoceras depressum, Eutrephoceras donbassicum, Eutrephoceras dorbignyanum, Eutrephoceras douvillei, Eutrephoceras dubaleni, Eutrephoceras expansum, Eutrephoceras eyerdami, Eutrephoceras faxoense, Eutrephoceras flammeum, Eutrephoceras globosum, Eutrephoceras hacobjani, Eutrephoceras hallidayi, Eutrephoceras hannai, Eutrephoceras indicum, Eutrephoceras insigne, Eutrephoceras irritilasi, Eutrephoceras izumoensis, Eutrephoceras japonicus, Eutrephoceras johnsoni, Eutrephoceras jonesi, Eutrephoceras justum, Eutrephoceras kummeli, Eutrephoceras laverdei, Eutrephoceras lentiforme, Eutrephoceras leonei, Eutrephoceras marksi, Eutrephoceras merteni, Eutrephoceras montanaense, Eutrephoceras montmollini, Eutrephoceras moskvini, Eutrephoceras municeps, Eutrephoceras neubergicus, Eutrephoceras nodai, Eutrephoceras oregonense, Eutrephoceras parisiense, Eutrephoceras perlatus, Eutrephoceras planoventer, Eutrephoceras quadrilineatum, Eutrephoceras reesidei, Eutrephoceras rotundum, Eutrephoceras sloani, Eutrephoceras soyaense, Eutrephoceras spengleri, Eutrephoceras sphaericum, Eutrephoceras stephensoni, Eutrephoceras subfleuriausianum, Eutrephoceras subinflatum, Eutrephoceras sublaevigatum, Eutrephoceras subrotundum, Eutrephoceras tawaense, Eutrephoceras traubi, Eutrephoceras tumescens, Eutrephoceras umbilicare, Eutrephoceras urbanum, Eutrephoceras uzense, Eutrephoceras vastum, Eutrephoceras victorianum, Eutrephoceras waageni
Type specimen: USNM 158421, a shell. Its type locality is USGS Mesozoic 19170, Forest Grove, which is in a Callovian marine horizon in the Rierdon Formation of Montana.
Ecology: nektonic carnivore
Average measurements (in mm): shell diameter 203.0
Distribution:
• Cretaceous of United States (3: Montana collections)
• Jurassic of United States (7: Montana)
Total: 10 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.