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Kileskus digital by christopher252-d5h2i0r

Kileskus (meaning lizard in the Khakas language) is a genus of tyrannosauroid dinosaur known frompartial remains found in Middle Jurassic (Bathonian stage) rocks of Krasnoyarsk Krai, Russia. Fossils recovered include the holotype maxilla, a premaxilla, a surangular, and a few bones from the hand and foot. The skull bones are similar to those of Proceratosaurus. The type species is K. aristotocus. Kileskus was named in 2010 by Averianov and colleagues. They performed a phylogenetic analysis and found it to be a basal proceratosaurid.

Kileskus is a case study in the subtleties of theropod paleontology: technically, this middle Jurassic dinosaur is classified as a "tyrannosauroid" rather than a "tyrannosaurid," which means it almost, but didn't quite, belong to the exact same evolutionary line that went on to spawn monsters like Tyrannosaurus. (In fact, Kileskus' closest relative seems to have been Proceratosaurus, which isn't recognized by most amateurs as a true tyrannosaur, though paleontologists might disagree.) However you choose to describe it, the (possibly feathered) Kileskus was clearly near the top of the food chain in its central Asian habitat, even if it was decidedly shrimpy compared to later tyrannosaurs.

ReferencesEdit

http://phenomena.nationalgeographic.com/2012/12/24/k-is-for-kileskus/

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