Yi (dinosaur)

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Yi qi
Temporal range:
MIddle or Late Jurassic, 160 Ma
Yi qi fossil.jpg
Replica fossil
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Saurischia
Suborder: Theropoda
Family: Scansoriopterygidae
Genus: Yi
Xu et al., 2015
Species:
Y. qi
Binomial name
Yi qi
Xu et al., 2015

Yi is a genus of climbing and gliding dinosaurs from the Jurassic of China. Its only species, Yi qi [1] is known from a single fossil specimen of an adult found in middle or late Jurassicof Hebei, China. It lived about 160 million years ago.

Yi was a small, possibly tree-dwelling (arboreal) animal. Like other of its family, Yi had an unusual, elongated third finger. This helped to support a membranous gliding plane (aerofoil) made of skin.[2]

The gliding planes of Yi qi were also supported by a long, bony strut attached to the wrist. This modified wrist bone and gliding membrane is unique among all known dinosaurs, and might have resulted in wings similar in appearance to those of bats.

References[change | change source]

  1. from Chinese: ; pinyin: ; literally: "wing" and ; ; "strange"
  2. Xu X. et al 2015. A bizarre Jurassic maniraptoran theropod with preserved evidence of membranous wings. Nature. 521, 70–73. [1]