Cephalopoda - Goniatitida - Cyclolobidae
Alternative combinations: Waagenoceras cumminsi guadalupense, Waagenoceras guadalupense
Synonym: Waagenoceras clavatum Plummer and Scott 1937
Full reference: G. H. Girty. 1909. The Guadalupian fauna. United States Geological Survey Professional Paper 58:1-651
Belongs to Mexicoceras according to A. Alanis-PavoĢn et al. 2025
See also Bogoslovskaya 1990, Girty 1909, Leonova 2002, Leonova 2010, Miller 1944, Miller 1945, Miller and Furnish 1940, Plummer and Scott 1937 and Zhao 1980
Sister taxa: Mexicoceras globosum, Mexicoceras smithi
Type specimens:
- Mexicoceras guadalupense: Its type locality is USGS 2965 green, southern Delaware Mountains, which is in a Roadian/Capitanian slope limestone in the Delaware Mountain Formation of Texas
- Waagenoceras clavatum: Its type locality is B.E.G. 55-T-4, Terry's Church, east of Casey's Last Chance Well, which is in a Capitanian carbonate marl in the Bell Canyon Formation of Texas.
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 24.4
Distribution:
• Permian of Mexico (6 collections), United States (35: Texas)
Total: 41 collections including 42 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.