The Yixian Formation is a geological formation in Jinzhou, Liaoning, People's Republic of China, that spans the Barremian stage of the Early Cretaceous. It is known for its exquisitely preserved fossi
Caudipteryx (an oviraptorosaurian dinosaur)
Confuciusornis (a stem-bird)
Hyphalosaurus (an aquatic choristodere)
Liaobatrachus (a fossil frog)
Sinosauropteryx is an extinct genus of coelurosaurian theropod dinosaurs. Described in 1996, it was the first dinosaur taxon outside of Avialae to be found with evidence of feathers. It was covered wi
Yixian Formation
…sauropod Dongbeititan and the ceratopsian Psittacosaurus. Other biota included the troodontid Mei, the dromaeosaurid Tianyuraptor, the compsognathid Sinosauropteryx and the tyrannosauroid Dilong. Microraptorians, such as Sinornithosaurus and Graciliraptor, also inhabit the Yixian. A limnic eruption may have preserved…
Skeletal diagram of S. prima showing known remains of the holotype and a referred specimen
Counter slab of the S. prima holotype, on display at the Geological Museum of China
S. prima holotype and referred specimen with diagrams showing feathers and internal tissue