Round 1: Tossup 3

This class includes the subfamily Anguinae, whose members like the slow worm can be distinguished from similar organisms by the presence of external ear openings. This class contains the most prevalent animals with parietal (“puh-RYE-uh-tul”) third eyes, including a “living fossil” species called the tuatara. (15[1])This non-mammalian class contains the animal (15[1])with the strongest measured (*) bite force. An extinct order in this class that was the first group of vertebrates to evolve powered flight was the pterosaurs (“TAIR-uh-sores”). For 10 points, name this class of (-5[1])vertebrates that includes crocodilians, snakes, and lizards. ■END■ (10[3])

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