Sinornithosaurus

When a perfect specimen of Sinornithosaurus, complete with feather impressions was found, it was a turning point in the study of . Detailed analysis showed tiny structures in the feathers almost identical to those of modern . Perhaps more amazingly, pigments were found that hinted at colours such as reddish-brown, yellows and black.


would have been useful for this metre-long raptor as it hunted the forests of the early . Sinornithosaurus was recovered from China's fossil-rich Yixian formation. It represents one of the earliest and most primitive of the . It is also one of the most bird-like of the feathered dinosaurs ever found. Whether the grooves along the teeth suggest Sinornithosaurus was is still debated.

Source: http://www.bbc.co.uk/nature/life/Sinornithosaurus

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