A rendering of the ancient tree-climbing reptile Eoscansor. A fossil of Eoscansor was discovered in Northern New Mexico in rocks dating back 305 million years. With this discovery, Eoscansor becomes the oldest tree-climbing reptile on record.
Usage: Carnegie Museum of Natural History
Credit: Matt Celeskey
Note: Representative image at left is often cropped for display purposes. Downloaded high-resolution images are not cropped.