Did all dinosaurs possess feathers?

A newly-discovered fossil raises the possibility that all dinosaur lineages were fuzzy. read more

Some dinosaurs had feathers, that is true. But not all. Feathers seem to be at least a coelurosaur (tyrannosaurs, ornithomimosaurs, compsognathids, raptors, egg thieves, etc) trait; maybe a tetanurine (coelurosaurs, spinosaurs, Allosaurus and kin, etc) trait. But it's not diagnostic for dinosaurs. read more

Up until now, all of those dinosaurs were confirmed to be carnivorous theropods, like Velociraptor and the ancestors of birds. However, fossilized remains of a new type of herbivorous dinosaur indicate that all dinosaurs may have had feathers. read more

“Feathers clearly evolved in the dinosaur lineage, but right now, the data do not point to a feathered ancestor for them all.” The first dinosaurs evolved from reptiles more than 230 million years ago. read more