The Tiaojishan Formation is a geological formation in Hebei and Liaoning, People's Republic of China, dating to the middle-late Jurassic period. It is known for its exceptionally preserved fossils, in
Yi is a genus of scansoriopterygid dinosaur from the Late Jurassic of China. Its only species, Yi qi, is known from a single fossil specimen of an adult individual found in Middle or Late Jurassic Tia
Tiaojishan Formation
…colors the animal may have exhibited in life Anchiornis Aurornis Caihong Eosinopteryx Epidexipteryx Pedopenna Scansoriopteryx Serikornis Xiaotingia Yi Aurornis A. xui Liaoning One specimen An anchiornithid roughly the size of a modern pheasant Caihong C. juji Hebei Yanliao Biota One specimen An…