Aves - Hesperornithiformes - Hesperornithidae
Alternative spelling: Hesperornidae
Full reference: O. C. Marsh. 1872. Preliminary description of Hesperornis regalis, with notices of four other new species of Cretaceous birds. The American Journal of Science and Arts, series 3 3(13-18):360-365
Parent taxon: Hesperornithiformes according to A. Bell and L. M. Chiappe 2020
See also Bell and Chiappe 2016, Carroll 1988, Elzanowski et al. 2001, Hay 1902, Hay 1930, Kurochkin 2000, Livezey and Zusi 2007, Marsh 1872, Martin 1984, Martin and Tate 1976, Rees and Lindgren 2005, Wetmore 1940, Wetmore 1956, Wetmore 1960 and Wilson et al. 2011
Sister taxa: Baptornithidae, Brodavidae, Chupkaornis, Enaliornis, Enaliornithidae, Fumicollis, Pasquiaornis, Potamornis
Subtaxa: Asiahesperornis Asiahesperornithinae Canadaga Hesperornis Parahesperornis
Type: Hesperornis
Distribution:
• Cretaceous of Canada (34: Alberta, Manitoba, Northwest Territories, Nunavut collections), Kazakhstan (1), the Russian Federation (6), Sweden (1), United States (16: Alaska, Arkansas, Kansas, Montana, South Dakota)
Total: 58 collections including 75 occurrences