Ornitholestes

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Ornitholestes
Fossil range: Late Jurassic
Image:Ornitholestes BW.jpg
life restoration of Ornitholestes
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Sauropsida
Superorder: Dinosauria
Order: Saurischia
Suborder: Theropoda
(unranked) Coelurosauria
Genus: Ornitholestes
Osborn, 1903
Species

O. hermanni Osborn, 1903 (type)

Ornitholestes ("bird robber") was a small theropod dinosaur of the late Jurassic of Western Laurasia (the area that was to become North America). Almost everything known of this species comes from a single skeleton of Ornitholestes, found near Como Bluff in 1900, and described by Henry Fairfield Osborn in 1903. A hand was later attributed to Ornitholestes, although this attribution is now in doubt. The species name honours the AMNH preparator Adam Hermann.

Ornitholestes was a coelurosaur, similar in many ways to Compsognathus, though somewhat larger. It had small, sharp teeth and probably preyed on small animals such as lizards and mammals. Ornitholestes is sometimes illustrated with a crest on the snout (similar to that of Proceratosaurus); however this has recently been disproved by Carpenter et al., which indicated that the 'crest' was actually a broken nasal bone.

Image:Ornitholestes.jpg
"The theropod dinosaur Ornitholestes capturing its prey, Archeopteryx", by Charles Knight

[edit] Popular culture

The animated film Fantasia included, in the Rite of Spring segment, what appears to be an Ornitholestes leaping at an Archaeopteryx.

An Ornitholestes with a snout-crest appeared in the second episode of Walking with Dinosaurs as a main enemy of Diplodocus youngsters.

[edit] References

  • Osborn, H. F. (1903). "Ornitholestes hermanni, a new compsognathoid dinosaur from the upper Jurassic". Bulletin of the American Museum of Natural History 19: 459-464.
  • Carpenter, Miles, Ostrom and Cloward (2005). ""Redescription of the small maniraptoran theropods Ornitholestes and Coelurus from the Upper Jurassic Morrison Formation of Wyoming."". Carpenter (ed.). The Carnivorous Dinosaurs. Indiana University Press.: 49-71..
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