Sinornithosaurus
Sinornithosaurus (derived from Latin and Greek, meaning 'Chinese bird-lizard') was a feathered dinosaur from the Lower Cretaceous, a dromaeosaur. It was found in the Yixian Formation in what is now China.
| Sinornithosaurus Temporal range: Early Cretaceous,
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| S. millenii fossil, Hong Kong Science Museum | |
Scientific classification 
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| Unrecognized taxon (fix): | Sinornithosaurus |
| Type species | |
| †Sinornithosaurus millenii Xu, Wang, & Wu, 1999
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| Species | |
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This new fossil supports the idea that these dinosaurs did not have scaly, reptile-like skin, but had a softer, downy coat. No fossil skin impressions of these dinosaurs had been found previously.
Sinornithosaurus Media
Artist's impression of S. millenii
Cast of the holotype fossil
Some palaeontologists have hypothesized that Sinornithosaurus millenii had venom due to some dentitional similarities to modern venomous snakes.
Referred specimen, Hong Kong Science Museum
NGMC 91, nicknamed "Dave", at the Geological Museum of China.
Skeletal reconstructions of S. millenii and NGMC 91
Xiaotingia zhengi, an archaeopterygian which lived in China 150 million years ago
Austroraptor_Restoration_(flipped)
Shanag Restoration
Velociraptor mongoliensis
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