Children (19 direct children, 60 direct and indirect children):
Balaenoptera
(tree size 31)
Rorquals
Plesiobalaenoptera
Diunatans
Parabalaenoptera
(tree size 1)
Megaptera
(tree size 2)
Humpback whales
Plesiocetus
Cetotheriophanes
Archaebalaenoptera
(tree size 1)
Protororqualus
(tree size 1)
Megapterinae
Praemegapterinae
Agaphelinae
Balaenopterinae
Parabalaenopterinae
Megoptera
(tree size 1)
Physalus
(tree size 2)
Swinhoia
(tree size 1)
Pterobalaena
(tree size 1)
Rorqualus