Cephalopoda - Ammonitida - Olcostephanidae

Full reference: R. W. Imlay. 1940. Neocomian Faunas of Northern Mexico. Geological Society America Bulletin 51(1):117-190

Belongs to Mexicanoceras according to R. W. Imlay 1940

Sister taxon: Mexicanoceras laticostatum

Type specimen: UMMP 19063, a shell

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell diameter 17.5

Distribution: found only at 58-Coahuila (Cretaceous of Mexico)

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Specimen images are retrieved through the ePANDDA API.