Cephalopoda - Ammonitida - Knemiceratidae

Alternative combination: Knemiceras triangulare

Full reference: V.E. Benavides-Caceres. 1956. Cretaceous system in northern Peru. Bulletin of the American Museum of Natural History 108(4):1-493

Belongs to Glottoceras according to E. Robert 2002

Sister taxa: Glottoceras attenuatum, Glottoceras crassicostatum, Glottoceras crassinodosum, Glottoceras gabbi, Glottoceras laraense, Glottoceras moorei, Glottoceras ollonense, Glottoceras ovale, Glottoceras raimondii, Glottoceras semicostatum, Glottoceras sommermeieri

Type specimen: AMNH 27853, a shell

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell length 97.0