Archaeopterygiformes
Archaeopterygidae
Yandangornithiformes
Yandangornithidae
Cathyornithiformes
Cathyornithidae
Gobipterygiformes
Gobipterygidae
Enantiornithiformes
Zhyraornithidae
Enantiornithidae
Liaoningornithiformes
Liaoningornithidae
Chaoyangiaformes
Chaoyangidae
| Songlingornithidae
Yanornithiformes
Yanornithidae
Ichthyornithiformes
Ambiortidae
Hesperornithiformes
Hesperornithidae
Incertae sedis
Eremopezidae
Eleutherornithidae
Remiornithiformes
Remiornithidae
Lithornithiformes
Lithornithidae
| Tinamiformes
Tinamidae
Struthioniformes
Struthionidae
Rheiformes
Opisthodactylidae
Rheidae
Casuariiformes
Casuariidae
Dromornithidae
Aepyornithiformes
Aepyornithidae
Dinornithiformes
Dinornithidae
| Emeidae
Casuariiformes
Dromaiidae
Apterygiformes
Apterygidae
Galliformes
Megapodiidae
Gallinuloididae
Paraortygidae
Quercymegapodiidae
Cracidae
Numididae
Odontophoridae
Phasianidae
Anseriformes
Incertae sedis
| Incertae sedis
Presbyornithidae
Incertae sedis
Anhimidae
Anseranatidae
Anatidae
Sphenisciformes
Spheniscidae
Gaviiformes
Gaviidae
Procellariiformes
Tytthostonychidae
Diomedeoididae
Diomedeidae
Procellariidae
Hydrobatidae
Ciconiiformes
Xenerodiopidae
|
Teratornithidae
Pelagornithidae
Procellariiformes
Pelecanoididae
Podicipediformes
Podicipedidae
Phoenicopteriformes
Phoenicopteridae
Ciconiiformes
Ciconiidae
Threskiornithidae
Ardeidae
Pelecaniformes
Phaethontidae
Prophaethontidae
| Plotopteridae
Fregatidae
Ciconiiformes
Scopidae
Balaenicipitidae
Pelecaniformes
Pelecanidae
Sulidae
Phalacrocoracidae
Anhingidae
Ciconiiformes
Cathartidae
Falconiformes
Falconidae
Accipitridae
Gruiformes
Otididae
| Diatrymiformes
Gastornithidae
Gruiformes
Aptornithidae
Phorusrhacidae
Mesitornithidae
Cunampaiidae
Bathornithidae
Idiornithidae
Foratidae
Cariamidae
Apterornithidae
Rhynochetidae
Messelornithidae
Eurypygidae
Rallidae
Heliornithidae
Psophiidae
| Geranoididae
Eogruidae
Ergilornithidae
Gruidae
Aramidae
Turniciformes
Turnicidae
Charadriiformes
Burhinidae
Chionididae
Haematopodidae
Dromadidae
Ibidorhynchidae
Recurvirostridae
Charadriidae
Rostratulidae
Cimolopterygidae
Graculavidae
| Jacanidae
Pedionomidae
Thinocoridae
Scolopacidae
Glareolidae
Laridae
Stercorariidae
Alcidae
Pteroclidiformes
Pteroclididae
Columbiformes
Raphidae
Columbidae
Psittaciformes
Incertae sedis
Quercypsittidae
Psittacidae
|