Children (17 direct children, 198928 direct and indirect children):
Gnathostomata
(tree size 197832)
Gnathostome
Anaspida
(tree size 23)
Osteostraci
(tree size 83)
Ostracoderm
Galeaspida
(tree size 43)
Pituriaspida
(tree size 3)
Pteraspidomorphi
(tree size 182)
Thelodonti
(tree size 118)
Agnatha
(tree size 340)
Hyperoartia
(tree size 45)
Cyclostomi
(tree size 7)
Cyclostomes
Conodonta
(tree size 234)
Conodonts
Apedolepis
Sinoniscus
Myxinomorphi
Petromyzontomorphi
(tree size 1)
Anaspidomorphi
Myopterygii