Cephalopoda - Ammonitida - Cardioceratidae
Full reference: R. W. Imlay. 1953. Callovian (Jurassic) ammonites from the United States and Alaska Part 2. Alaska Peninsula and Cook Inlet regions. United States Geological Survey Professional Paper 249-B:41-108
Belongs to Cadoceras according to A. J. Arthur et al. 1993
See also Imlay 1953
Sister taxa: Cadoceras (Bryocadoceras), Cadoceras (Pseudocadoceras), Cadoceras (Stenocadoceras), Cadoceras arcticum, Cadoceras bathomphalum, Cadoceras bellabimba, Cadoceras bodylevskyi, Cadoceras doroschini, Cadoceras falsum, Cadoceras glabrum, Cadoceras kialagvikense, Cadoceras milaschewici, Cadoceras pishmae, Cadoceras septentrionale, Cadoceras sublaeve, Cadoceras tenuicostatum, Cadoceras voronetsae, Cadoceras wosnessenskii
Type specimen: USNM 108057, a shell. Its type locality is USGS Mesozoic 21348, Iniskin Peninsula, which is in a Callovian marine siltstone in the Chinitna Formation of Alaska.
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 49.2
Distribution:
• Jurassic of Canada (3: British Columbia collections), United States (23: Alaska)
Total: 26 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.