RICHARD BIZLEY / SCIENCE PHOTO LIBRARY RICHARD BIZLEY / SCIENCE PHOTO LIBRARY
Cretaceous birds. Artwork of Confuciusornis sanctus birds in a tropical forest. This now extinct bird was common in the Cretaceous Period (146 to 65 million years ago), and was seen by riversides in what would later become Asia. This bird had 'finger claws' on its wings, as seen at lower right, and used these to climb on the bark of trees. It fed on nuts and seeds with its toothless beak. Males (one at left) had twin tail feathers.
Model release not required. Property release not required.