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Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Deuterostome (Deuterostomia)
Chordata (Chordates)
Olfactores
Craniata (Craniata (chordata))
Vertebrata (Animals with backbone)
Gnathostomata (Gnathostome)
Eugnathostomata
Teleostomi
Euteleostomi
Sarcopterygii (Lobe-finned fishes)
Dipnotetrapodomorpha
Tetrapodomorpha (Tetrapodomorph)
Tetrapoda (Tetrapod)
Reptiliomorpha
Amniota (Amniote)
Sauropsida
Reptilia (Reptiles)
Eureptilia
Romeriida
Diapsid (Diapsida)
Neodiapsida
Sauria
Archelosauria
Archosauromorpha
Archosauriformes
Crurotarsi
Archosaur (Archosauria)
Avemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosaur (Dinosauria)
Saurischia
Eusaurischia
Š¢heropod (Theropoda)
Neotheropoda
Averostra
Tetanurae
Orionides
Avetheropoda
Coelurosauria
Tyrannoraptora
Maniraptoromorpha
Maniraptoriformes
Maniraptora
Pennaraptora
Paraves (Eumaniraptora)
Bird (Birds)
Neognathae (Neognaths)
Neoaves
Aequorlitornithes
Ardeae
Aequornithes
Austrodyptornithes

Procellariiformes (21685)

Children (10 direct children, 475 direct and indirect children):

Albatross (tree size 68)
Diomedeidae

Storm petrel (tree size 97)
Hydrobatidae

Procellariidae (tree size 266)

Diomedeoididae (tree size 1)
Diomedeoides

Lonchodytes (tree size 1)

Pelecanoididae (tree size 19)

Oceanitidae (tree size 11)
Austral storm petrel

Eopuffinus (tree size 1)

Tytthostonychidae

Makahala (tree size 1)