Children (9 direct children, 167 direct and indirect children):
Acrocanitidae
(tree size 3)
Cheiloceratidae
(tree size 24)
Gattendorfiidae
(tree size 30)
Prionoceratidae
(tree size 55)
Prodromitidae
(tree size 8)
Sporadoceratidae
(tree size 34)
Praeglyphioceratidae
(tree size 3)
Pseudarietitidae
Voehringeritidae
(tree size 1)