The Ornithosauria is a brilliant work that explains the structures of the Pterodactyles of the Cambridge Greensand. They are small, extinct, flying reptiles of the late Jurassic and Cretaceous Periods, about the size of small to mid-sized birds. This is a well-written work compiled after years of thorough research. The writer used simple language to make the text more understandable and allow the general readers to grasp information quickly.
