So much we can infer from the footprint impressions.

The general appearance is shown in the restorations of _Ornitholestes_, _Compsognathus_ and _Anchisaurus_ by Charles Knight.
[Illustration: Fig.

17 .-- Skeleton of _Ornitholestes_ a small carnivorous dinosaur of the Jurassic period.

American Museum No.
619.] [Illustration: Fig.

18 .-- Restoration of _Ornitholestes_, by C.R.
Knight under direction of Professor Osborn.