hesperornis In A Sentence
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- Like many other Mesozoic birds such as " Ichthyornis ", " hesperornis " had teeth as well as a beak, which were used to hold prey.
- Such a pygostyle is absent in Archaeopteryx, hesperornis, Tinami and Ratitae, but it occurs individually in old specimens of the ostrich and the kiwi.
- At about long, " H . rossicus " was the largest species of " hesperornis " and among the largest hesperornithines, slightly smaller than the large Canadian genus " Canadaga ".
- While " hesperornis " is not thought to have left descendants, the earliest families, the Pelagornithidae and the Plotopteridae ( a group of large seabirds that looked like the penguins ).
- Among these, it belonged to the Hesperornithidae, along with " hesperornis ", the well-known namesake genus.
- Of these the most interesting are Ichthyornis (= Graculavus) and hesperornis, from the Cretaceous shales of Kansas.
- The loon like hesperornis and the seabird Ichthyornis, found in the ancient chalk of a vanished Cretaceous sea.
- Hesperornis too, with its keelless sternum, had aborted wings but strong legs and feet adapted for swimming, while Ichthyornis had a keeled sternum and powerful wings, but diminutive legs and feet.
- In addition to non-crown group primitive birds like " Archaeopteryx ", " hesperornis " and " Confuciusornis ", stem group birds include the dinosaurs and the pterosaurs.
- Hesperornis is an extinct genus of flightless aquatic birds that lived during the Late Cretaceous.
- In western Kansas, one of Marsh's four students, Thomas H . Russell, discovered a " nearly perfect skeleton " of " hesperornis .".
- This mistake was rectified by later authors, who sank " Hargeria " back into " hesperornis " and renamed the more distinctive specimen " Parahesperornis ".
Similar words: Hester, Hesler, Hesionidae, Hest, Hesychastic, Hesperornithes, Hese, Hesitated, Hesitancies, Hessler, Hesitancy, Heston, Hesychian, Hesychasts, Hesiod, Hesse Nassau, Hesi, Hessians, Hessle, Hessmer