Cephalopoda - Ammonitida - Cardioceratidae
Alternative combination: Kheraiceras parviforme
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 Chinitnites according to R. W. Imlay 1975
See also Imlay 1953
Sister taxon: Chinitnites chinitnaensis
Type specimen: USNM 108052, a shell. Its type locality is USGS Mesozoic 21334, Iniskin Peninsula, which is in a Callovian marine siliciclastic in the Chinitna Formation of Alaska.
Average measurements (in mm): shell diameter 19.5
Distribution:
• Jurassic of United States (3: Alaska collections)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.