This book introduces young children to the dinosaur, pterodactyl, whose name means "winged finger". The pterodactyl lived in parts of Europe and Africa. It became extinct over 150 million years ago. It was a flying reptile and its wings often reached up to thee feet wide. It had a long finger it used to move its wings. It walked slowly on its hands and legs. The pterodactyl was a carnovore and fed on fish and other small animals.