. . "Marine Reptiles, Fossil - Elementary Literature." . . "Giant sea reptiles of the dinosaur age"@en . "Giant sea reptiles of the dinosaur age" . . . "Juvenile works"@en . . "Juvenile works" . "Giant Sea Reptiles of the Dinosaur Age" . "In the Dinosaur Age, enormous reptiles called ichthyosaurs, plesiosaurs and mosasaurs swarm the seas. Some of these massive creatures weighed more than twenty tons. Others had snake-like necks as long as twenty-three feet. From Kansas and Canada to Antarctica and New Zealand, fossil bones of these real-life sea monsters have been found." . . . . "Provides information about enormous reptiles who swam the seas during the dinosaur age." . . . . . "Describes various giant sea reptiles and explains how fossil evidence from around the world is helping scientists to learn about them."@en . . . .