Pterosaurs or flying reptiles were the first vertebrates to evolve flight. These distant relatives of modern reptiles and dinosaurs lived from the Late Triassic

Describes the physical characteristics and behavior of a variety of prehistoric flying creatures. Features pop-up and movable illustrations.

"On the Wing is the first book to take a comprehensive look at the evolution of flight in all four groups of powered flyers: insects, pterosaurs, birds, and bat

The most authoritative illustrated book on flying reptiles available For 150 million years, the skies didn't belong to birds—they belonged to the pterosaurs.

In the style of WHEN BUGS WERE BIG and WHEN FISH GOT FEET this book discusses all the exciting developments of the Triassic Age, from the recovery of the planet