Cephalopoda - Ammonitida - Desmoceratidae
Alternative combination: Pachydesmoceras pachydiscoides
Synonym: Pachydiscus rosewoodensis Anderson 1958
Full reference: T. Matsumoto. 1954. Family Puzosiidae from Hokkaido and Saghalien : Studies on the Cretaceous Ammonoidea from Hokkaido and Saghalien-V. Memoirs of the Faculty of Science, Kyushu University, Series D, Geology 5(2):69-118
Belongs to Pachydesmoceras according to A. Kin and R. Niedźwiedzki 2012
See also Anderson 1958, Haggart et al. 2005, Matsumoto 1954 and Matsumoto 1959
Sister taxa: Pachydesmoceras denisonianum, Pachydesmoceras kamerunense, Pachydesmoceras kossmati, Pachydesmoceras linderi, Pachydesmoceras maroccanum
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 545.0
Distribution:
• Cretaceous of Canada (1: British Columbia collection), India (2), Poland (2), United States (1: California)
Total: 6 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.