Children (11 direct children, 304 direct and indirect children):
Anuitidae
Atsabitidae
(tree size 4)
Aulacogastrioceratidae
Clinolobidae
Eothinitidae
Metalegoceratidae
(tree size 75)
Neoicoceratidae
(tree size 20)
Paragastrioceratidae
(tree size 169)
Pericycloceratidae
Eupleuroceratidae
(tree size 2)
Spirolegoceratidae
(tree size 23)