Antigyroceras
Cyrtogomphoceratidae
(tree size 7)
Lowoceratidae
Mandaloceratidae
Pancornus
Phragmoceratidae
(tree size 3)
Radoceras
Reudemannoceratidae
(tree size 1)
Selenoceras
Smileoceras
Westonoceratidae
(tree size 11)
Discosoridae
(tree size 3)
Kitatites
Kladisoceras
Jaregoceras
Ukhtoceras
Mesoceratidae
(tree size 1)
Kadaroceras
Karadzharoceras
Huanghuachangoceras
Manjoceras
Ruedemannoceratidae