Nabata Ọbịa
Chọọ site na ezinụlọ (nhazi nke a na-esote Howard na Moore maka ezinụlọ ndị toro ogologo):

Archaeopterygiformes
Archaeopterygidae

Yandangornithiformes
Yandangornithidae

Jeholornithiformes
Jeholornithidae

Confuciusornithiformes
Confuciusornithidae

Omnivoropterygiformes
Omnivoropterygidae

Mystiornithiformes
Avisauridae
Cuspirostrisornithidae
Mystiornithidae

Cathayornithiformes
Cathayornithidae
Alethoalaornithidae

Gobipterygiformes
Gobipterygidae
Gobioolithidae

Enantiornithiformes
Zhyraornithidae
Enantiornithidae
Bohaiornithidae

Liaoningornithiformes
Liaoningornithidae

Alexornithiformes
Alexornithiformes
Alexornithidae

Longipterygiformes
Longipterygidae

Protopterygiformes
Protopterygidae

Incertae sedis
Hongshanornithidae

Chaoyangiaformes
Chaoyangidae
Songlingornithidae

Patagopterygiformes
Patagopterygiformes
Patagopterygidae

Ambiortiformes
Ambiortiformes

Yanornithiformes
Yanornithiformes
Yanornithidae

Gansuiformes
Gansuidae

Sandcoleiformes
Sandcoleidae

Ichthyornithiformes
Ambiortidae
Ichthyornithidae

Apatornithiformes
Apatornithidae

Hesperornithiformes
Hesperornithiformes

Avibase abiala 417,578,914 oge kemgbe 24 June 2003. © Denis Lepage | Amụma nzuzo