Children (24 direct children, 17875 direct and indirect children):
Ammonoidea
(tree size 14902)
Ammonoids
Bactritida
(tree size 5)
Bactritoidea
Coleoidea
(tree size 2190)
Nautiloid
(tree size 732)
Nautiloidea
Neocephalopoda
(tree size 7)
Toxancyloceras
Dibranchiata
Tetrabranchiata
Kinoceras
Orthoceratoidea
(tree size 10)
Cylioceras
Nectocaridae
Deltoceratidae
Spirulirostridae
Anomalosaepiidae
Endocycloceratidae
Robsonoceratidae
Stemtonoceratidae
Mesoteuthoidea
(tree size 2)
Protactinocerida
Yanhecerida
Boletzkida
(tree size 2)
Plectonocerida
Oekotraustes
(tree size 1)