odontornithes การใช้

• Marsh identified it as a bird, about the size of a heron, of the family Archaeopterygidae within the Odontornithes.
• Hesperornitheans were originally combined with " Ichthyornis " in the paraphyletic group " Odontornithes " by Othniel Charles Marsh, in 1873.
• In his 1880 work, " Odontornithes : A monograph on the extinct toothed birds of North America ", he added the Saururae, represented by " Archaeopteryx ", as a third order.
• The best known of the " Odontornithes " are " Hesperornis regalis ", standing about 3 ft . high, the somewhat taller " H . crassipes ", and " Ichthyornis dispar " . " Hesperornis " looked somewhat similar to a loon, while " Ichthyornis " was quite similar to a gull or petrel.