†family Hammatoceratidae Buckman 1887 (ammonite)
Parent taxon: Hildoceratoidea according to M. K. Howarth 2013
Sister taxa: Diplesioceras, Graphoceratidae, Hildoceratidae, Phymatoceratidae, Sonniniidae
Subtaxa: Erycitinae, Hammatoceratinae, Podagrosiceratinae, Zurcheriinae
Ecology: fast-moving nektonic carnivore