Editing Feather (section)

==== Origin of ornamental feathers ====
One possible origin of ornamental feathers is in the megalosauroid ''[[Sciurumimus]]'', which have a simple, monofilamentous morphology. Monofilamentous feathers have a single, thread-like structure, as opposed to branches or barbs, and are considered to be the earliest form of feather<ref name=":1" />. Monofilamentous feathers have also been found in a wide range of taxa, though ''Sciurumimus'' was the earliest. Monofilamentous feathers have also been found in the tyrannosauroid ''[[Yutyrannus]]'' and the therizinosauroid ''[[Beipiaosaurus]]'', with proportionally broader monofilaments that were likely a form of early specialized ornamental feathers<ref name=":1" />. 

An analysis of feathers discovered in Burmese [[amber]] revealed unusual coloration along the [[rachis]], suggesting they bore striking color patterns. Early ornamental feathers in the genus ''[[Schizooura]]'' suggest an aerodynamic use as well as an ornamental one, with the pin-tailed shape being too narrow to impact aerodynamics<ref name=":1" />.