It had curved, interlocking teeth and large, flexible, paddle-like flippers. Small fish and shrimp were probably the mainstay of its diet. Cryptocleidus lived during the late Jurassic period . Fossils have been found in England. It was not a dinosaur, but another type of extinct reptile.
Crystals are solids whose atoms form a very regular pattern.
He has worked extensively in Canada and Asia, recently excavating feathered dinosaurs from China . Cuvier studied fossils and founded the science of paleontology. Cycads are palm-like trees that live in warm climates. These gymnosperms have long, divided leaves and produce large cones. Later cycads had a more rounded, barrel-like base.