Children (22 direct children, 5130 direct and indirect children):
Acanthoceratidae
(tree size 348)
Acanthoceratoidea
(tree size 736)
Desmoceratoidea
(tree size 502)
Desmocerataceae
Eoderocerataceae
(tree size 492)
Eoderoceratoidea
Hammatoceratoidea
(tree size 163)
Haplocerataceae
(tree size 295)
Haploceratoidea
Hoplitaceae
(tree size 263)
Hoplitoidea
Perisphinctoidea
(tree size 998)
Psiloceratoidea
(tree size 350)
Stephanocerataceae
(tree size 292)
Stephanoceratoidea
Hildoceratoidea
(tree size 573)
Hildocerataceae
Pulchelliaceae
(tree size 16)
Endemoceratoidea
Engonoceratoidea
(tree size 64)
Spiroceratoidea
(tree size 14)
Lytoceratoidea
(tree size 2)
Sphaeroceratoidea
Arietitoidea
Usseliceras
Neokanabiceras
Arietitacea
Deshayesitoidea