�y��vlog

Caihong had fuzzy feathers and pennaceous ones, those that look like writing quills.

Caihong had fuzzy feathers and pennaceous ones, those that look like writing quills.

Its limbs, however, would have sported several other kinds of feathers, including long pennaceous feathers with central vanes that are more like the plumage we often see on modern birds.

Zhenyuanlong had large wings covered in multiple types of pennaceous feathers— feathers with quills and barbs—a characteristic that is relatively unique to modern birds and some of these basal paravian dinosaurs.

New specimen of Archaeopteryx provides insights into the evolution of pennaceous feathers. Nature 511, 79-82.