Children (35 direct children, 257 direct and indirect children):
Nautilidae
(tree size 70)
Nautilus
Nautilina
(tree size 4)
Aturiidae
(tree size 7)
Askeatonolucidum
Belloceras
Clydonautilaceae
(tree size 17)
Clydonautiloidea
Cyrthoceratites
Dawsonocerina
Devonocheilus
Eridites
Koninckioceratidae
(tree size 6)
Nautiloceras
Phaedrysmocheilus
Rutocerina
Tainocerataceae
(tree size 35)
Tainoceratoidea
Trigonocerataceae
(tree size 23)
Trigonoceratoidea
Yakutionautilus
Paracenoceratidae
(tree size 4)
Krykyloceras
Nautilaceae
(tree size 44)
Tainoceratina
Rutoceratina
(tree size 1)
Mariceras
Temnocheilidae
(tree size 1)
Domatoceratidae
Permonautilidae
Paranautilidae
Dentoceratidae
Aktubonautilidae
Pleuronautilidae
Thrincoceratidae
Nautiloidea
Trigonoceratoidea
Clydonautiloidea
Clydonautilaceae
Aipoceratoidea
(tree size 10)
Aipocerataceae