Main Page | See live article | Alphabetical index Pseudaelurus is a prehistoric cat that lived in Europe and North America approximately 20-10 million years ago. It is an ancestor of today's domestic and big cats, and a successor to Proailurus. Pseudaelurus was approximately the size of a cougar by the time it died out. See also: Felidae. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.