Cephalopoda - Ammonoidea - Nostoceratidae

Full reference: M. K. Howarth. 1965. Cretaceous ammonites and nautiloids from Angola. Bulletin of the British Museum (Natural History) Geology 10(10):337-412

Belongs to Didymoceras according to M. K. Howarth 1965

Sister taxa: Didymoceras angulatum, Didymoceras binodosum, Didymoceras californicum, Didymoceras cheyenense, Didymoceras cheyennense, Didymoceras cochleatus, Didymoceras hornbyense, Didymoceras navarroensis, Didymoceras nebrascense, Didymoceras newtoni, Didymoceras nicolletii, Didymoceras platycostatum, Didymoceras stevensoni, Didymoceras tenuicostatus, Didymoceras tortus, Didymoceras tricostatus, Didymoceras umbilicatus, Didymoceras uncus, Didymoceras vespertinus

Type specimen: BMNH C. 52701, a shell. Its type locality is Egito, Benguela basin, which is in a Campanian marine horizon in Angola.

Ecology: fast-moving nektonic carnivore