Cephalopoda - Ammonitida - Ancyloceratidae

Alternative combination: Anahamulina vespertina

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

Belongs to Acrioceras according to R. W. Imlay 1960

See also Anderson 1938

Sister taxa: Acrioceras (Acrioceras), Acrioceras hamlini, Acrioceras meriani, Acrioceras tabarelli, Acrioceras voyanum

Type specimen: Its type locality is CAS Loc113, Mitchell Creek, which is in a Hauterivian marine siliciclastic in the Budden Canyon Formation of California.

Ecology: fast-moving nektonic carnivore

Distribution: found only at CAS Loc. 113, Mitchell Creek

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Specimen images are retrieved through the ePANDDA API.