The right ulna of a turkey vulture (C) is also shown, revealing its feathers (D) and quill knobs (E and F). Science / Science. Sept. 20, 2007, 2:41 PM EDT / Source: LiveScience.

Velociraptor Had Feathers Date: September 20, 2007 Source: American Museum of Natural History Summary: Finding of quill knobs on fossilized velociraptor bone demonstrates that even large dinosaurs ...

(A) View of right ulna of Velociraptor IGM 100/981. (B) Detail from cast of red box in (A), with arrows showing six evenly spaced feather quill knobs. (C) View of right ulna of a turkey vulture ...

The team recognised these as quill knobs, small lumps of bone that act as attachment points for feathers. These knobs are direct evidence that Velociraptor carried a row of feathers on its forearm ...