Nemegtonykus (meaning "Nemegt claw") is a genus of alvarezsaurid dinosaur from the Late Cretaceous ( Maastrichtian) Nemegt Formation of Mongolia. The type and only species is Nemegtonykus citus. It is the second alvarezsaurid known from the Nemegt Formation, preceded by Mononykus.
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Nemegtonykus (meaning "Nemegt claw") is a genus of alvarezsaurid dinosaur from the Late Cretaceous ( Maastrichtian) Nemegt Formation of Mongolia. The type and only species is Nemegtonykus citus. It is the second alvarezsaurid known from the Nemegt Formation, preceded by Mononykus.
==Discovery== thumb|left|Size comparison In 2008, the Korea-Mongolia International Dinosaur Expedition at the Altan Uul III site in the Gobi Desert excavated a dense concentration of theropod skeletons. Some of these were of Gobiraptor as well as a yet undescribed oviraptorid but three were of Alvarezsauridae. One specimen, MPC-D 100/206, was considered cf. Mononykus sp. but the other two represented a species new to science.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).