Cephalopoda - Ammonitida - Collignoniceratidae
Alternative combination: Ammonites neptuni
Synonyms: Oregoniceras jillsoni Anderson 1958, Oregoniceras knighteni Anderson 1902, Oregoniceras oregonense Anderson 1902, Oregoniceras siskiyouense Anderson 1902, Schloenbachia knighteni Anderson 1902, Schloenbachia oregonensis Anderson 1902, Schloenbachia siskiyouensis Anderson 1902
Belongs to Subprionocyclus according to M. Wilmsen and E. Nagm 2014
See also Anderson 1902, Anderson 1958, Futakami 1990, Matsumoto 1959 and Wright 1979
Sister taxa: Subprionocyclus branneri, Subprionocyclus hitchinensis, Subprionocyclus normalis, Oregoniceras phoenixense, Oregoniceras multicostum, Oregoniceras argonautarum, Oregoniceras condoni, Oregoniceras jacksonense
Type specimens:
- Subprionocyclus neptuni: MMG SaK 10032, a shell. Its type locality is Dresden-Strehlen, Saxony, which is in a Turonian marine limestone in the Strehlen Formation of Germany.
- Oregoniceras jillsoni: CAS 61832.01, a shell. Its type locality is Forty-nine mine, south of Phoenix (Turonian blocks), which is in a Turonian marine siliciclastic in Oregon.
- Schloenbachia knighteni:
- Schloenbachia oregonensis:
- Schloenbachia siskiyouensis:
Average measurements (in mm): shell diameter 82.2
Distribution:
• Cretaceous of Brazil (3 collections), Germany (6), the United Kingdom (1), United States (19: California, Oregon)
Total: 29 collections including 34 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.