Hesperornis

From EvoWiki

Hesperornis Fossil range: Late Cretaceous
Hesperornis regalis skeleton at the NMNH
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Aves Order: Hesperornithiformes† Family: Hesperornithidae† Genus: Hesperornis† Marsh, 1872
Species
H. regalis†(type species) H. chowi† H. crassipes† H. macdonaldi† H. mengeli† H. rossicus† H. bairdi†

'Hesperornis' is an extinct genus of bird that lived between 89 Mya and 65 Mya during the Coniacian through Maastrichtian Stages of the Late Cretaceous.