†Neophylloceras hetonaiense Matsumoto 1942 (ammonite)
Cephalopoda - Phylloceratida - Phylloceratidae
Belongs to Neophylloceras according to T. Matsumoto 1984
Sister taxa: Hypophylloceras (Neophylloceras) ramosus, Neophylloceras nera, Neophylloceras ultinatum
Ecology: nektonic carnivore