Haplocheirus
Extinct genus of dinosaurs / From Wikipedia, the free encyclopedia
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Haplocheirus (/ˌhæplʊuˈkəirəs/, meaning "simple hand") is an extinct genus of theropod dinosaur from the Middle Jurassic Shishugou Formation of Xinjiang in China. It is generally considered to be an alvarezsauroid,[2][3][4][5][6] although some researchers have questioned this assignment.[7][8] The genus contains a single species, H. sollers, which is known from a mostly complete skeleton including the skull.[2]
Haplocheirus | |
---|---|
Holotype skull | |
Holotype postcania | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Clade: | Saurischia |
Clade: | Theropoda |
Superfamily: | †Alvarezsauroidea (?) |
Genus: | †Haplocheirus Choiniere et al., 2010 |
Type species | |
†Haplocheirus sollers Choiniere et al., 2010 |
The quality of the preservation in the only known specimen of Haplocheirus is near-perfect and preserves the animal in three dimensions. This makes Haplocheirus one of the most well-known Jurassic coelurosaurs from anywhere in the world.[2] The specimen has been relatively well-studied in comparison with other comparable taxa like Zuolong or Guanlong, which has allowed researchers to gain insights into the evolution of maniraptorans[8] as well as the sensory capabilities,[9] diet,[10] and ontogeny[11] of primitive coelurosaurs.