Archosauria - Dinosauria

Full reference: J. N. Choiniere, X. Xu, J. M. Clark, C. A. Forster, Y. Guo and F. Han. 2010. A basal alvarezsauroid theropod from the early Late Jurassic of Xinjiang, China. Science 327(5965):571-574

Parent taxon: Maniraptora according to J. N. Choiniere et al. 2010

Sister taxa: Alvarezsauridae, Montanoolithidae, Oviraptoridae, Oviraptorosauria, Paraves, Therizinosauria, Yixianosaurus, Palaeopteryx thompsoni

Subtaxa: Haplocheirus

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Type: Alvarezsaurus

Ecology: ground dwelling carnivore