圓頂龍科

Multi tool use
圓頂龍科 化石時期: 侏儸紀晚期到白堊紀早期
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圓頂龍的想像圖
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保护状况
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化石
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科學分類
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界:
| 動物界 Animalia
| 門:
| 脊索動物門 Chordata
| 綱:
| 蜥形綱 Sauropsida
| 超目:
| 恐龍總目 Dinosauria
| 目:
| 蜥臀目 Saurischia
| 亞目:
| 蜥腳形亞目 Sauropodomorpha
| 下目:
| 蜥腳下目 Sauropoda
| 科:
| 圓頂龍科 Camarasauridae Cope, 1877
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屬
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阿拉果龍 Aragosaurus
圓頂龍 Camarasaurus
大山鋪龍 Dashanpusaurus
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圓頂龍科(Camarasauridae)是蜥腳下目的一科,生存於侏儸紀晚期到白堊紀早期的北美洲、歐洲、亞洲。
敘述
圓頂龍科是群中型蜥腳類恐龍,體型粗壯,四肢結實,背部曲線逐漸往後彎曲,前肢長於後肢。與近親腕龍科、梁龍科相比,圓頂龍科的頭骨較高、口鼻部較平坦、體型較小、頸部與尾巴較短。
圓頂龍科的牙齒長、呈鑿狀、往前傾斜,是與其他蜥腳類最大的不同處。
分類
圓頂龍科的定義為:大鼻龍類之中,較接近圓頂龍,而離高胸腕龍較遠的所有物種。但是,目前古生物學界並沒有普遍使用圓頂龍科。
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