Children (8 direct children, 29014 direct and indirect children):
Sphenacodontidae
(tree size 22)
Haptodus
(tree size 2)
Sphenacodontoidea
(tree size 28981)
Palaeohatteria
(tree size 1)
Pantelosaurus
Haptodontinae
Kenomagnathus
Kenomagnathus