Cephalopoda - Ammonitida - Acanthoceratidae
Full reference: O. Haas. 1949. Acanthoceratid ammonoidea from the Greybull, Wyoming. Bulletin of the American Museum of Natural History 93(1)
Belongs to Metoicoceras according to P. L. Sealey and S. G. Lucas 2019
Sister taxa: Metoicoceras bergquisti, Metoicoceras crassicostae, Metoicoceras geslinianum, Metoicoceras gibbosum, Metoicoceras latoventer, Metoicoceras mosbyense, Metoicoceras muelleri, Metoicoceras swallovi
Type specimen: AMNH 26415, a shell
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 78.9
Distribution:
• Cretaceous of United States (2: Wyoming collections)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.