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鳄龙

鳄龙属
化石时期:晚白垩世至始新世
鳄龙重建图
科学分类 编辑
界: 动物界 Animalia
门: 脊索动物门 Chordata
纲: 爬行纲 Reptilia
目: 离龙目 Choristodera
科: 鳄龙科 Champsosauridae
属: 鳄龙属 Champsosaurus
Cope, 1877
  • 亚伯达鳄龙 C. albertensis Parks, 1927
  • C. ambulator Brown, 1905
  • C. annectens Cope, 1876 (疑名) (模式种)
  • C. dolloi Sigogneau-Russell, 1979
  • 巨大鳄龙 C. gigas Erickson, 1972
  • C. laramiensis Brown, 1905
  • C. lindoei Gao & Fox, 1998
  • C. natator Parks, 1933
  • C. tenuis Erickson, 1981
异名
  • 南方鳄龙 C. australis Cope, 1881 (疑名)
  • C. brevicollis Cope, 1876 (疑名)
  • C. inelegans Parks, 1933
  • C. inflatus Parks, 1933
  • C. profundus Cope, 1876 (疑名)
  • C. puercensis Cope, 1882 (疑名)
  • C. saponensis Cope, 1882 (疑名)
鳄龙的骨骼
C. laramiensis的头颅骨
C. natator的骨骼

鳄龙(学名:Champsosaurus)是双孔类爬行动物的一属,属于离龙目。身长约1.5米长。化石发现于北美洲亚伯达省萨克其万省蒙大拿州新墨西哥州怀俄明州德州[1]、以及欧洲比利时法国,地质年代为白垩纪晚期到始新世。近年也发现刚孵化鳄龙的化石[2]

离龙的属名(Champsosaurus)意为“鳄鱼蜥蜴”;Champso-根据一位古希腊语专家的宣称:古埃及人将鳄鱼称为χαμψαι。

鳄龙外表类似恒河鳄,在水或沼泽中以牠们的长而布满牙齿的颌部捕食鱼类。牠们可能以身体的侧向运动来游泳,将四肢贴近身体以增加流线性,如同鳄鱼海鬃蜥。鳄龙眼后的头骨非常宽广,以利于强壮的下颌肌肉可附着在上面。

参考资料

[编辑]
  1. ^ Lehman, T.M., and Barnes, K., 2010, Champsosaurus (Diapsida: Choristodera) from the Paleocene of West Texas: paleoclimatic implications: Journal of Paleontology, v. 84, p. 341-345. Retrieved 20 September, 2010.
  2. ^ Tanke, D.H. and Brett-Surman, M.K. 2001. Evidence of Hatchling and Nestling-Size Hadrosaurs (Reptilia:Ornithischia) from Dinosaur Provincial Park (Dinosaur Park Formation: Campanian), Alberta, Canada. pp. 206-218. In: Mesozoic Vertebrate Life—New Research Inspired by the Paleontology of Philip J. Currie. Edited by D.H. Tanke and K. Carpenter. Indiana University Press: Bloomington. xviii + 577 pp.
  • D.Lambert, D.Naish and E.Wyse 2001, "Encyclopedia of Dinosaurs and prehistoric life", p.77, Dorling Kindersley Limited, London. ISBN 0-7513-0955-9
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鳄龙
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