Children (12 direct children, 43 direct and indirect children):
Hexanchus
(tree size 11)
Notorynchus
(tree size 6)
Heptranchias
(tree size 8)
Gladioserratus
(tree size 1)
Notorhynchus
(tree size 2)
Welcommia
Pseudonotidanus
(tree size 1)
Weltonia
Notidanoides
Notidanodon
Paranotidanus
Heptanchus
(tree size 2)