Cephalopoda - Ammonitida - Pachydiscidae

Alternative combination: Parapachydiscus princeps

Full reference: F. M. Anderson. 1958. Upper Cretaceous of the Pacific Coast. Geological Society of America Memoir 71:1-378

Belongs to Pachydiscus (Neodesmoceras) according to T. Matsumoto 1960

See also Anderson 1958

Sister taxa: Neodesmoceras catarinae, Pachydiscus (Neodesmoceras) mokotibensis, Pachydiscus (Neodesmoceras) obsoletiformis, Pachydiscus (Neodesmoceras) soma

Type specimen: UCMP 14867, a shell. Its type locality is UCMP A-3100 - Santa Catarina Landing [Rosario Fm], which is in a Maastrichtian coastal siliciclastic in the Rosario Formation of Mexico.

Average measurements (in mm): shell diameter 508.0

Distribution: found only at UCMP A-3100 - Santa Catarina Landing [Rosario Fm]

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Specimen images are retrieved through the ePANDDA API.