Cephalopoda - Ammonoidea - Nostoceratidae

Invalid subtaxa: Didymoceras angolaense Haughton 1924 [replaced name], Nostoceras angolaense Haughton 1924 [replaced name]

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 Nostoceras according to P. M. Zaborski 1990

Sister taxa: Nostoceras (Nostoceras), Nostoceras alternatus, Nostoceras approximans, Nostoceras arkanasanum, Nostoceras colubriformis, Nostoceras danei, Nostoceras draconis, Nostoceras helicinus, Nostoceras hyatti, Nostoceras kernense, Nostoceras mariatheresianum, Nostoceras mendryki, Nostoceras monotuberculatum, Nostoceras obtusum, Nostoceras pauper, Nostoceras pleurocostatum, Nostoceras pulcher, Nostoceras saundersorum, Nostoceras splendidus, Nostoceras stantoni

Type specimens:

• Nostoceras rotundum: BMNH C. 52745, a shell. Its type locality is Barra do Dande, Benguela basin, which is in a Campanian marine horizon in Angola.
• Didymoceras angolaense:

Ecology: fast-moving nektonic carnivore