†Glyptoxoceras rugatum Forbes 1846 (ammonite)
Cephalopoda - Ammonoidea - Diplomoceratidae
Alternative combinations: Glyptoxoceras rugatus, Hamites rugatus
Belongs to Glyptoxoceras according to W. J. Kennedy et al. 1997
Sister taxa: Glyptoxoceras aquisgranense, Glyptoxoceras brasiliense, Glyptoxoceras ellisoni, Glyptoxoceras parahybense, Glyptoxoceras retrorsum, Glyptoxoceras texanum
Ecology: fast-moving nektonic carnivore