Apsaravis

Ichthyornis

Hesperornis

Tinamidae

Apterygidae

Rheidae

Pelagornithidae

Sylviornithidae

Galliformes

Dromornithidae

Anatidae

Anhimidae

Threskiornithidae

Ciconiidae

Ardeidae

Scopidae

Balaenicipitidae

Pelecanidae

Diomedeidae

Procellariidae

Phaethontidae

Fregatidae

Phalacrocoracidae

Sulidae

Anhingidae