†Haploceras (Haploceras) Zittel 1870 (ammonite)
Cephalopoda - Ammonitida - Haploceratidae
Parent taxon: Haploceras according to D. Grigore 2018
See also Zeiss et al. 1994
Sister taxa: Haploceras (Hypoglochiceras), Haploceras (Volanites), Haploceras deplanatum, Haploceras elimatum, Haploceras pachecoense, Haploceras propinquum, Haploceras staszycii, Haploceras subelimatum, Haploceras transatlanticum, Haploceras umbilicatum, Haploceras veracruzanum
Subtaxa: Haploceras (Haploceras) staczycii Haploceras (Haploceras) tomephorum
Ecology: fast-moving nektonic carnivore
Distribution: