Apsaravis
Ichthyornis
Hesperornis
Galliformes
Tinamidae
Rheidae
Anseriformes
Dasornis
Pelagornis_slash_Osteodon
Phoenicopteridae
Scopidae
Ciconiidae
Ardeidae
Fregatidae
Suloidea
Pelecanidae
Procellariiformes
Phaethontidae
Spheniscidae
Podicipedidae
Gaviidae