Rabu, 03 Februari 2010

Finally, the True Colour of Dinosaurs was found

Scientists have discovered fossils of new kind of dinosaurs completely. They have revealed that the dog-sized Sinosauropteryx - a fast running meat-eater that lived 125 million years ago. It is also called as Ginger- Saurus because was covered with 'russet and orange' feathers.
This discovery is important because this is where the color is known dinosaurs, whereas during this time filmmakers like Jurassic Park or The Lost World just wonder about the color of dinosaurs. In addition these findings also resolve the debate about early function of animal fur since Sinasauropteryx has it already. The team of British, Irish and Chinese scientists studied microscopic structures inside the fossilised feathers from a Sinosauropteryx discovered in north east China. The creature has an unusual crest of bristles running along the head, neck and back and all along the tail, forming stripes. Using an electron microscope, the team discovered fossilised "melansomes" - tiny structures buried within feathers that give them colour. One variety of melanosomes makes feathers, fur or hair, black or grey. Another gives feathers an orange or brown colour.Unlike most of the pigments that give feathers colour, melansomes are large enough to be preserved during the fossilisation process.The study found that the Sinosauropteryx had alternating ginger and white rings down its tail. It also confirmed that the bristles were true feathers.The team also discovered that an early ancestor of birds - called Confuciusornis which lived 150 million years ago - had patches of white, black and orange-brown colouring.Now the scientists plan to study feathers all over the two fossils to create a full picture of their colourings.

Source: dailymail.co.uk

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