Phylum Hemichordata       Subphylum:  Urochordata  Cepahlochordata  Vertebrata


SUPERCLASS GNATHOSTOMATA

Class Aves



Protoavis


Archaeopteryx


Hesperornis


Icthyornis


Ratites


Penguins


Pigeon


Doves


Pelicans

Cormorants

Eagle


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