Cephalopoda - Ammonoidea - Nostoceratidae

Parent taxon: Nostoceras according to W. J. Kennedy and W. A. Cobban 1994

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

Subtaxa: Nostoceras (Nostoceras) attenuatum, Nostoceras (Nostoceras) fischeri, Nostoceras (Nostoceras) schloenbachi

View classification

Type: Ancyloceras approximans

Ecology: fast-moving nektonic carnivore