Cephalopoda - Ammonoidea - Diplomoceratidae

Alternative combination: Ancyloceras retrorsum

Belongs to Glyptoxoceras according to W. J. Kennedy 1993

Sister taxa: Glyptoxoceras aquisgranense, Glyptoxoceras brasiliense, Glyptoxoceras ellisoni, Glyptoxoceras parahybense, Glyptoxoceras rugatum, Glyptoxoceras texanum

Ecology: fast-moving nektonic carnivore