A dromaeosaurid dinosaur with a filamentous integument from the Yixian Formation of China

  title={A dromaeosaurid dinosaur with a filamentous integument from the Yixian Formation of China},
  author={Xing Xu and Xiaolin Wang and Xiaocong Wu},
Dromaeosaurids, despite their notoriety, are poorly characterized meat-eating dinosaurs, and were previously known only from disarticulated or fragmentary specimens. Many studies have denied their close relationship to birds. Here we report the best represented and probably the earliest dromaeosaurid yet discovered, Sinornithosaurus millenii gen. et sp. nov., from Sihetun, the famous Mesozoic fish–dinosaur–bird locality in China. Sinornithosaurus not only greatly increases our knowledge of… 
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