Crinitodiscus
(tree size 1)
Urojanetia
(tree size 2)
Urotrachys
(tree size 2)
Phymatodiscus
(tree size 10)
Trachyuropoda
(tree size 83)
Capitodiscus
(tree size 2)
Cephalouropoda
(tree size 1)
Trachyibana
(tree size 1)
Origmatrachys
(tree size 1)