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Cunningtoniceras johnsonianum Stephenson 1955 (ammonite)

Cephalopoda - Ammonitida - Acanthoceratidae

PaleoDB taxon number: 340841

Alternative combination: Acanthoceras johnsonianum

Belongs to Cunningtoniceras according to W. J. Kennedy et al. 1988

Sister taxa: Cunningtoniceras cunningtoni, Cunningtoniceras inerme, Cunningtoniceras roguense

Type specimen: USNM 108846, a shell

Ecology: fast-moving nektonic carnivore