Cephalopoda - Ammonitida - Collignoniceratidae
Full reference: F. M. Anderson. 1958. Upper Cretaceous of the Pacific Coast. Geological Society of America Memoir 71:1-378
Belongs to Prionotropis according to F. M. Anderson 1958
Sister taxa: Collignoniceras bravaisianum, Collignoniceras carolinum, Collignoniceras jorgenseni, Collignoniceras klamathensis, Collignoniceras percarinatum, Collignoniceras praecox, Collignoniceras vermilionense, Collignoniceras woollgari, Selwynoceras mexicanum, Prionotropis caurinus
Type specimen: CAS 33707.01, a shell. Its type locality is 3 miles north of Henley, which is in a Turonian marine siliciclastic in California.
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 81.0
Distribution: found only at 3 miles north of Henley
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.