Children (12 direct children, 40 direct and indirect children):
Phocoena
(tree size 9)
Common porpoises
Neophocaena
(tree size 7)
Finless porpoise
Semirostrum
(tree size 1)
Phocoenoides
(tree size 3)
Haborophocoena
(tree size 2)
Septemtriocetus
(tree size 1)
Archaeophocaena
(tree size 1)
Pterophocaena
(tree size 1)
Miophocaena
(tree size 1)
Acanthodelphis
Piscolithax
(tree size 1)
Numataphocoena
(tree size 1)