ichthyosaur shonisaurus reptiles underwater with tropical fish

shonisaurus popularis ichthyosaur dinosaur reptile marine aquatic carnivore predator animal lizard sea life extinct nevada usa triassic period age era epoch extinction mesozoic evolution prehistoric creature primitive primeval genus species wild wildlife reef racoon butterflyfish bogue fish humpback red snapper blackbacked underwater undersea rendering reptiles ichthyosaurs swim surrounding tropical reef