Like shark and dinosaur teeth they would break, but then regenerate.
它们就像鲨鱼和恐龙的牙齿一样会断裂，但也会再生。
The late Triassic reptile Uatchitodon is known only from its teeth, which resemble tall, serrated crocodile or dinosaur teeth.
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。
Other clues to dinosaur diet besides teeth and jaws are fossilised dung and stomach contents, teeth marks and the presence of 'mill stones' in the stomach for grinding vegetation.
除了牙齿和下巴之外，能为猜测恐龙的食谱提供其它线索的就还有粪便化石胃摄入物，牙印以及胃中出现的“碎石”，这些都是支持他们草食性的证据。
The up-to-three-inch-long (about seven-centimeter-long) leech has large teeth, like its dinosaur namesake Tyrannosaurus rex.
这种体型长达三英寸（约合7厘米）的水蛭长有巨大的牙齿，科学家因此借用霸王龙的称呼为其命名。
This dinosaur had lots of long, sharp teeth.
这只恐龙有很多又长又锋利的牙齿。
这只恐龙有平平的牙齿。
They may instead have used their long teeth to dig and chop, in the same way that beavers do, says Paul Barrett, a dinosaur expert at the Natural History Museum, London.
它们可能像海狸那样通过用长牙掘土和削劈来获取食物，伦敦自然历史博物馆的恐龙专家鲍尔·巴勒特说。
The Institute of Vertebrate Paleontology and Paleoanthropology, part of the Academia Sinica in Beijing, houses the fossilized teeth of the dinosaur Beipiaosaurus.
北京中科院脊椎动物古生物古人类研究所摆放着一只北票龙的牙齿化石。
The Institute of Vertebrate Paleontology and Paleoanthropology, part of the Academia Sinica in Beijing, houses the fossilized teeth of the dinosaur Beipiaosaurus.
北京中科院脊椎动物古生物古人类研究所摆放着一只北票龙的牙齿化石。
应用推荐