Lystrosaurus

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Lystrosaurus is one of the most interesting cases in the fossil record. It survived the Great Dying, then suddenly prospered across the entire planet having no predators for millions of years and making up 95% of the fossils in some fossil beds. Then it and it suddenly stopped evolving and went extinct soon after in the Early Triassic. Lystrosaurus has 4/6 different species recognized; they have different facial features and range in size from between 2/8 feet and around __/__ pounds. Lystrosaurs can be recognized by their pair of saber teeth. They only had these two teeth and a beak for eating low-growth plants.