dinochecker
Welcome to our KILESKUS entry...
Archived dinosaurs: 1221
fb twit g+ feed
Dinosaurs from A to Z
Click a letter to view...
A B C D E F G
H I J K L M N
O P Q R S T U
V W X Y Z ?

KILESKUS

a meat-eating proceratosaurid tyrannosauroid theropod dinosaur from the Middle Jurassic of Russia.
Pronunciation: kill-ESS-kuss
Meaning: Lizard (see below)
Author/s: Averianov et al. (2010)
Synonyms: None known
First Discovery: West Siberia, Russia
Discovery Chart Position: #705

Kileskus aristotocus

Kileskus remains aren't brilliant but they do bear a striking resemblance to both Guanlong and Proceratosaurus, so much so that the three were brought together in a new branch of huge-nostrilled, possibly nose-crested tyrannosauroids called Proceratosauridae, which are some of the most ancient relatives of Tyrannosaurus.
Strangely, because Kileskus is missing the bit of skull that a crest may have been attached to it's far from certain that it actually had one.
(Noble lizard)Etymology
In the language of Khakas as used by the Turkic peoples of the republic of Khakassia in southern Siberia, Kileskus means "lizard".
The species epithet, aristotocus, is a Greek term denoting noble origin, which refers to its position amongst the derived theropods known as coelurosaurs, the lineage that includes "the Tyrant lizard king" (Tyrannosaurus rex).
Discovery
Kileskus was discovered in the Itat Formation at Berezovsk Quarry, 2km south of Nikol'skoe Village, Sharypovo District, Krasnoyarsk Territory, West Siberia, Russia.
The holotype (ZIN PH 5/117) is a right maxilla (tooth bearing bone of the upper jaw) but bits and bobs from the jaw, hands and feet, found in the same 2 m2 area, were also referred to Kileskus on the assumption that they belong to the same critter.
Estimations
Timeline:
Era: Mesozoic
Epoch: Middle Jurassic
Stage: Bathonian
Age range: 167-164 mya
Stats:
Est. max. length: 5.2 meters
Est. max. hip height: ?
Est. max. weight: 700 Kg
Diet: Carnivore
References
Averianov AO, Krasnolutskii SA and Ivantsov SV (2010) "A new basal coelurosaur (Dinosauria: Theropoda) from the Middle Jurassic of Siberia". Proceedings of the Zoological Institute RAS. 314(1): 42–57.
• Averianov, AO, Osochnikova A, Skutschas P, Krasnolutskii S, Schellhorn R, Julia AS and Martin T (2019) "New data on the tyrannosauroid dinosaur Kileskus from the Middle Jurassic of Siberia, Russia". Historical Biology, 33(7): 897–903. DOI: 10.1080/08912963.2019.1666839.
• Loewen MA, Irmis RB, Sertich JJW, Currie PJ and Sampson SD (2013) "Tyrant Dinosaur Evolution Tracks the Rise and Fall of Late Cretaceous Oceans". PLoS ONE, 8(11): e79420. DOI: 10.1371/journal.pone.0079420.
Email    Facebook    Twitter    Reddit    Pinterest
Time stands still for no man, and research is ongoing. If you spot an error, or want to expand, edit or add a dinosaur, please use this form. Go here to contribute to our FAQ.
All dinos are GM free, and no herbivores were eaten during site construction!
To cite this page:
Atkinson, L. "KILESKUS :: from DinoChecker's dinosaur archive".
›. Web access: 06th Mar 2026.
  top