†Aristoceras appressum Ruzhentsev 1950 (ammonite)
Click image to enlarge. Click to access iDigBio record.
Cephalopoda - Goniatitida - Thalassoceratidae
Full reference: V. E. Ruzhentsev. 1950. Verkhnekammenouglo'nye Ammonity Urala. Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta 29:1-223
Belongs to Aristoceras according to T. B. Leonova 2002
See also Ruzhentsev 1950
Sister taxa: Aristoceras chkalovi, Aristoceras liuzhaiense, Aristoceras serum
Type specimen: PIN 320/1170, a shell
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 12.5
Distribution:
• Permian of United States (1: Texas collection)
• Carboniferous of Kazakhstan (3), the Russian Federation (5)
Total: 9 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.