Cephalopoda - Ammonitida - Oppeliidae
Alternative combination: Bradfordia (Praeoppelia) oppeliiformis
Full reference: G. E. G. Westermann. 1969. The ammonite fauna of the Kialagvik Formation at Wide Bay, Alaska Peninsula. Part II. Sonninia sowerbyi zone (Bajocian). Bulletins of American Paleontology 57:1-226
Belongs to Praeoppelia according to A. Galácz 2015
See also Westermann 1969
Sister taxon: Praeoppelia gracililobata
Type specimen: USNM 160922, a shell. Its type locality is USGS Mesozoic 19863, Wide Bay, which is in a Discites marine shale in the Kialagvik Formation of Alaska.
Average measurements (in mm): shell diameter 83.8
Distribution:
• Jurassic of United States (4: Alaska collections)
Total: 4 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.