ammonites
Proteoceras perkinsi Ruedemann 1906 (mollusk)

Cephalopoda - Orthocerida - Proteoceratidae

Alternative combination: Oonoceras perkinsi

Belongs to Proteoceras according to R. H. Flower 1955

Sister taxa: Proteoceras moniliforme, Proteoceras tyronensis

Ecology: nektonic carnivore