Children (7 direct children, 21 direct and indirect children):
Carbactinoceratidae
(tree size 2)
Pseudactinoceratidae
(tree size 5)
Pseudorthoceratidae
(tree size 6)
Sactoceratidae
(tree size 1)
Spyroceratidae
Shikanoceratidae
Mooreoceratidae