Sea Monsters Of Long Ago By (author): "Millicent E. Selsam"Genres:Childrens books Nonfiction books Science books Picture Books Dinosaurs books ISBN0590075675ISBN139780590075671AsinSea Monsters Of Long AgoOriginal titleSea monsters of long agoText and illustrations introduce aquatic reptiles that swam in the oceans more than 70 million years ago.