http://www.rawstory.com/rs/2014/07/25/si...dinosaurs/
Quote:Siberian fossil discovery builds case for an age of feathered dinosaurs
Quote:The discovery of the fossilised remains of a creature that looks a little like a giant beak-less chicken has led scientists to a striking hypothesis: at one time all dinosaurs had feathers.
Researchers were aware that early flesh-eating dinosaurs had feathers, but the finding of the metre-long herbivore on a Siberian river bank has led experts to conclude that all dinosaurs from the Triassic period – more than 200m years ago – were feathered.
As dinosaurs evolved and in some cases developed armour, they lost the feathers, which were probably used for insulation and communication rather than flight.
