Children (20 direct children, 2082 direct and indirect children):
Adrianitoidea
(tree size 117)
Adrianitaceae
Cycloloboidea
(tree size 172)
Cyclolobaceae
Dimorphoceratoidea
(tree size 149)
Dimorphocerataceae
Gastrioceratoidea
(tree size 166)
Gastriocerataceae
Goniatitoidea
(tree size 173)
Goniatitaceae
Marathonitoidea
(tree size 67)
Marathonitaceae
Neodimorphoceratoidea
(tree size 33)
Neodimorphocerataceae
Neoicoceratoidea
(tree size 304)
Neoicocerataceae
Pericycloidea
(tree size 224)
Pericyclaceae
Popanoceratoidea
(tree size 36)
Popanocerataceae
Schistoceratoidea
(tree size 66)
Schistocerataceae
Shumarditaceae
(tree size 69)
Somoholitaceae
(tree size 186)
Somoholitoidea
Thalassoceratoidea
(tree size 57)
Neoglyphioceratoidea
(tree size 139)
Neoglyphiocerataceae
Agathiceratoidea
(tree size 42)
Nomismoceratoidea
(tree size 32)
Nomismocerataceae
Gonioloboceratoidea
(tree size 29)
Goniolobocerataceae
Girtyocerataceae
(tree size 1)
Somoholitoidea
Somoholitaceae