article: Ichthyosaur
links: Cymbospondylus Early Triassic Upper Triassic Natural History Museum Lyme Regis Permian Jurassic Coast Cretaceous Mixosaurus Mesozoic K/T extinction event Nevada British Mary Anning Ichthyosaurus somersetensis Temnodontosaurus platyodon Jurassic Ichthyosaurus Wales Stenopterygius Platypterygius Ophthalmosauridae Late Cretaceous Chaohusaurus Ophthalmosaurus Stephen Jay Gould Scale (ratio) Californosaurus Upper Cretaceous Lower Triassic Germany Ocean Triassic