This is the extinction that marks the boundary between the Triassic and Jurassic, occurred 199.6 million years ago. The Great Extinction has a profound impact on animal life on land and in the oceans. Many vertebrate species in the oceans and marine reptiles had disappeared, except fish lizard, lizard flippers. The invertebrates like hand book industry, nudibranch, class of amphibians and reptiles, especially lizards sub class shares (except dinosaurs) in the mainland have also been severely affected. About 23% of them, 48% of spending went extinct.
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