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MONONYKUS

an alvarezsaurid theropod dinosaur from the Late Cretaceous of Mongolia.
mononykus.png
Pronunciation: mo-NON-i-kus
Meaning: One claw
Author/s: Perle et al. (1993)
Synonyms: Mononychus (see etymology)
First Discovery: Ömnögovi, Mongolia
Chart Position: 314

Mononykus olecranus

Etymology
Mononykus is derived from the Greek "mono" (one, single) and "onykh" (claw), named for a short, robust forelimb possessing a single stout claw. It was originally named Mononychus (with a "ch" instead of a "k") in 1993, but was changed later the same year because German entomologist Johann Schueppel had already assigned that name to a beetle.
The species epithet, olecranus, is derived from the Greek "ole-kranon" (elbow head), and makes no sense on face value. However, it apparently refers to its elbow-like structure that gave the forearms unexpected strength for their small size.
Discovery
The first remains of Mononykus were discovered in the Nemegt Formation at Bugeen Tsav (aka Bugin Tsav, Bugin Tsav), Ömnögovi Province, Mongolia, by B. Namsarai—a preparator at the Mongolian Museum of Natural History—during the 1987 Soviet-Mongolian Paleontologic expedition.
The holotype (IGM N107/6) is a complete braincase, small fragments of skull bones, and a partial skeleton minus the tail.
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Cretaceous
Stage: Campanian-Maastrichtian
Age range: 71-68 mya
Stats:
Est. max. length: 0.9 meters
Est. max. hip height: ?
Est. max. weight: 6 Kg
Diet: Omnivore
References
• A. Perle, M. A. Norell, L. M. Chiappe and J. M. Clark (1993) "Flightless bird from the Cretaceous of Mongolia".
• A. Perle, L. M. Chiappe, R. Barsbold, J. M. Clark, M. A. Norell (1994) "Skeletal Morphology of Mononykus olecranus (Theropoda: Avialae) from the Late Cretaceous of Mongolia".
• Senter, P. (2005) "Function in the stunted forelimbs of Mononykus olecranus (Theropoda), a dinosaurian anteater".
• L.M. Chiappe, M.A. Norell and J.M. Clark (2002) "The Cretaceous short-armed Alvarezsauridae. Mononykus and its kin" in "Mesozoic Birds: Above the Heads of Dinosaurs".
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To cite this page:
Atkinson, L. "MONONYKUS :: from DinoChecker's dinosaur archive".
›. Web access: 26th Mar 2017.
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