Origin of birdsW
Origin of birds
AvisauridaeW
Avisauridae
EnantiornithesW
Enantiornithes
FukuipteryxW
Fukuipteryx
ManiraptoraW
Maniraptora
ParavesW
Paraves
PennaraptoraW
Pennaraptora
YixianosaurusW
Yixianosaurus