Cephalopoda - Ammonoidea - Megacrioceratidae

Alternative combination: Hoplocrioceras wintunium

Full reference: F. M. Anderson. 1938. Lower Cretaceous deposits in California and Oregon. Geological Society of America Special Paper 16:1-331

Belongs to Shasticrioceras according to M. A. Murphy 1975

See also Anderson 1938

Sister taxa: Shasticrioceras inflatum, Shasticrioceras patricki, Shasticrioceras poniente, Shasticrioceras roddai, Shasticrioceras whitneyi

Ecology: fast-moving nektonic carnivore

Distribution: found only at CAS loc. 1661, a mile west of the Murphy house, Roaring River (Cretaceous of California)

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Specimen images are retrieved through the ePANDDA API.