Cephalopoda - Ammonoidea - Nostoceratidae

Alternative combination: Turrilites alternatus

Belongs to Nostoceras according to W. J. Kennedy et al. 2000

Sister taxa: Nostoceras (Nostoceras), 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 rotundum, Nostoceras saundersorum, Nostoceras splendidus, Nostoceras stantoni

Ecology: fast-moving nektonic carnivore