《恐龙的牙齿》是教育科学出版社出版的图书,作者是冰波。
它们就像鲨鱼和恐龙的牙齿一样会断裂,但也会再生。
Like shark and dinosaur teeth they would break, but then regenerate.
晚期三叠纪爬行动物的判断依据是他们的牙齿与高大的锯齿鳄鱼或恐龙的牙齿相似。
The late Triassic reptile Uatchitodon is known only from its teeth, which resemble tall, serrated crocodile or dinosaur teeth.
有些恐龙只有未充分长成的牙齿。
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