nothosaurus attacks salmon school in blue ocean

nothosaurus mirabilis dinosaur animal predator carnivore reptile lizard aquatic marine flippers themes creature north africa europe china triassic period era epoch age evolution extinct extinction vertebrate organism teeth paleontology paleo art prehistoric primeval primitive genus species wild wildlife fish salmon atlantic salmo salar family salmonidae anadromous rayfinned nature life sea ocean saltwater underwater undersea group school swimming cold water rendering attacks swim away giant blue