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马拉鳄龙

马拉鳄龙属
化石时期:三叠纪后期,236.1–233.7 Ma
马拉鳄龙的骨架模型
科学分类 编辑
界: 动物界 Animalia
门: 脊索动物门 Chordata
纲: 蜥形纲 Sauropsida
目: 兔鳄目 Lagosuchia
科: 兔鳄科 Lagosuchidae
属: 马拉鳄龙属 Marasuchus
Sereno & Arcucci, 1994
模式种
里略马拉鳄龙
Marasuchus lilloensis

(Romer, 1972)
异名
  • 里略兔鳄 Lagosuchus lilloensis
    Romer, 1972[1]
马拉鳄龙的想像图

马拉鳄龙属名:Marasuchus,意为“长耳豚鼠般的鳄鱼”)是种类似恐龙鸟颈类主龙,化石发现于阿根廷的Chañares组地层,相当于三叠纪晚期的卡尼阶。马拉鳄龙是种小型爬行动物,身长大约是40公分[2]

马拉鳄龙最初被认为是兔鳄的第二种。但在1994年,保罗·塞里诺(Paul C. Sereno)与Andrea B. Arcucci的重新研究指出,兔鳄的模式标本保存程度不好,无法将其他标本归类于这个属。他们也指出,这个新标本的四肢比例不同于兔鳄的模式标本。因此他们将这个新标本建立为新属,马拉鳄龙。

参考资料

  1. ^ Alfred Sherwood Romer. "The Chanares (Argentina) Triassic reptile fauna. X. Two new but incompletely known long-limbed pseudosuchians". Breviora. 1971, 378: 1–10. 
  2. ^ 存档副本. [2012-06-23]. (原始内容存档于2016-03-16). 页面存档备份,存于互联网档案馆
  • Paul C. Sereno und Andrea B. Arcucci: Dinosaurian precursors from the Middle Triassic of Argentina: Marasuchus lilloensis gen. nov. Journal of Vertebrate Paleontology, 14: 53-73 Chicago, Ill. 1994 Abstract页面存档备份,存于互联网档案馆


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马拉鳄龙
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