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CERATONYKUS

an alvarezsaurid theropod dinosaur from the Late Cretaceous of Mongolia.
Pronunciation: suh-RAH-toe-NY-kus
Meaning: Horned claw
Author/s: Alifanov and Barsbold (2009)
Synonyms: None known
First Discovery: Ömnögovi, Mongolia
Discovery Chart Position: #660

Ceratonykus oculatus

(Sharp-Sighted Horned Claw)Etymology
Ceratonykus is derived from the Greek "cerat" (horned) and "onyx" (claw)
The species epithet, oculatus, means "sharp-sighted" in Latin.
Discovery
The remains of Ceratonykus were discovered in the Baruungoyot Formation at Khermiin Tsav, Ömnögovi aimag (South Gobi province), Mongolia, by Otkhoon Zhargal, a preperator at the Paleontological Center of the Mongolian Academy of Sciences, during the Paleoherpetological Party of the Joint Russian–Mongolian Paleontological Expedition in 2003.
The holotype (MPC 100/124) is an incomplete skull with partial lower jaw, several neck and tail vertebrae, sternum (breast bone), both collar bones, partial arms, a fragmentary hip bone (ilium), and hind legs.
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Cretaceous
Stage: Campanian-Maastrichtian
Age range: 72 mya
Stats:
Est. max. length: 0.7 meters
Est. max. hip height: ?
Est. max. weight: 1 Kg
Diet: Herbivore
References
• Alifanov VR and Barsbold R (2009) "Ceratonykus oculatus gen. et sp. nov., a new dinosaur (?Theropoda, Alvarezsauria) from the Late Cretaceous of Mongolia". Paleontological Journal, 43(1): 94–106. DOI: 10.1134/S0031030109010109.
• Alifanov VR and Saveliev SV (2011) "Brain structure and neurobiology of Alvarezsaurians (Dinosauria), exemplified by Ceratonykus oculatus (Parvicursoridae) from the Late Cretaceous of Mongolia". Paleontological Journal. 45 (2): 183–190. DOI: 10.1134/S0031030111020031.
• Paul GS (2016) "The Princeton Field Guide to Dinosaurs: Second Edition".
• Molina-Pérez R and Larramendi A (2016) "Encyclopedia of Dinosaurs: The Theropods" [aka Dinosaur Facts and Figures: The Theropods and other Dinosauriformes.]
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To cite this page:
Atkinson, L. "CERATONYKUS :: from DinoChecker's dinosaur archive".
›. Web access: 06th Mar 2026.
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