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Temporal range: Early Cretaceous, Hauterivian
130.7 Ma
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Theropoda
Family: Compsognathidae
Genus: Xunmenglong
Xing et al., 2019
Type species
Xunmenglong yingliangis
Xing et al., 2019

Xunmenglong (meaning "swift dragon" in Chinese Pinyin) is a genus of compsognathid theropod dinosaur from the Huajiying Formation from Hebei Province in China. The type and only species is Xunmenglong yingliangis. The holotype material consists of a pelvis, tail base and hindlimbs that had previously been part of a chimera containing three different animals. The animal is described as being the smallest known member of Compsognathidae, being about the size of the sub-adult Scipionyx holotype specimen or approximately 0.5 meters (1.6 feet) in length.[1]


  1. ^ Xing, Lida; Miyashita, Tetsuto; Wang, Donghao; Niu, Kechung; Currie, Philip J. (2019). "A new compsognathid theropod dinosaur from the oldest assemblage of the Jehol Biota in the Lower Cretaceous Huajiying Formation, northeastern China". Cretaceous Research: 104285. doi:10.1016/j.cretres.2019.104285. ISSN 0195-6671.

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