Children (12 direct children, 36 direct and indirect children):
Endoceratidae
(tree size 9)
Piloceratidae
(tree size 1)
Proterocameroceratidae
(tree size 8)
Suecoceras
Allotrioceratidae
(tree size 3)
Najaceratidae
(tree size 2)
Endoceridae
(tree size 1)
Manchuroceratidae
Cyrtendoceratidae
Thylacoceratidae
Chihlioceratidae
Humeoceratidae