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冥犬龙属

克贝洛斯龙属
化石时期:晚白垩世66 Ma
科学分类 编辑
界: 动物界 Animalia
门: 脊索动物门 Chordata
纲: 蜥形纲 Sauropsida
总目: 恐龙总目 Dinosauria
目: 鸟臀目 Ornithischia
亚目: 鸟脚亚目 Ornithopoda
科: 鸭嘴龙科 Hadrosauridae
亚科: 栉龙亚科 Saurolophinae
属: 克贝洛斯龙属 Kerberosaurus
Bolotsky & Godefroit, 2004
模式种
曼氏冥犬龙
Kerberosaurus manakiki

Bolotsky & Godefroit, 2004
异名

冥犬龙属名Kerberosaurus,意为“刻耳柏洛斯希腊神话的地狱看门狗)的蜥蜴”)是一栉龙亚科鸭嘴龙科恐龙,化石是从俄罗斯阿穆尔州布拉戈维申斯克察尕沿组(Tsagayan Formation)(地质年代为约6600万年前的晚白垩世马斯特里赫特阶尸骨层英语Bone bed挖出的含有头骨的骨骼,并显示与栉龙原栉龙近缘。[2]

历史

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1984年尤瑞·伯洛斯基(Yuri Bolotsky)及阿穆尔研究所的团队在布拉戈维申斯克发现一个大型恐龙尸骨层英语Bone bed,当中绝大部分都是阿穆尔龙化石,另还有些鳄鱼兽脚亚目结节龙科,及一种新的栉龙亚科,20年后,这个编号AENM 1/319的头骨标本成立为新属新种曼氏冥犬龙(Kerberosaurus manakiki)。[3]

描述

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鉴定特征有:窄额骨、脑壳形状独特、及鼻孔周围骨头与其外的骨头有明显分界。[3]目前仍未对该头骨碎片进行重建。估计身长8米。[4]

分类

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亲缘分支分类法分析显示冥犬龙与栉龙原栉龙互为姊妹群[3]

古地理学

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伯洛斯基和古德弗里(2004)讨论了冥犬龙的地理意义,其为晚白垩世东亚和北美的陆块连接与动物群交流提供进一步证据,另外两个近亲原栉龙及至少一个栉龙物种都只在北美洲发现。推测可能在坎潘阶早期的亚洲,栉龙所处演化支从爱德蒙托龙演化支分离出来并西迁北美,途中发展成冥犬龙,最后另一部分物种重返亚洲变成窄吻栉龙[3]

古生物学

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作为典型鸭嘴龙科,冥犬龙大型、植食性、可采双足或四足方式行走,利用复杂齿系咀嚼植物[5]

延伸阅读

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参考来源

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  1. ^ Xing, Hai; Zhao, Xijin; Wang, Kebai; Li, Dunjing; Chen, Shuqing; Mallon, Jordan C; Zhang, Yanxia; Xu, Xing. Comparative osteology and phylogenetic relationship of Edmontosaurus and Shantungosaurus (Dinosauria: Hadrosauridae) from the Upper Cretaceous of North America and East Asia. Acta Geologica Sinica-English Edition. 2014, 88 (6): 1623–1652. doi:10.1111/1755-6724.12334. 
  2. ^ Godefroit, P., Lauters, P., Van Itterbeeck, J., Bolotsky, Y. and Bolotsky, I.Y. (2011). "Recent advances on study of hadrosaurid dinosaurs in Heilongjiang (Amur) River area between China and Russia." Global Geology, 2011(3).
  3. ^ 3.0 3.1 3.2 3.3 Bolotsky, Y.L.; Godefroit, P. A new hadrosaurine dinosaur from the Late Cretaceous of Far Eastern Russia. Journal of Vertebrate Paleontology. 2004, 24 (2): 351–365. S2CID 130691286. doi:10.1671/1110. 
  4. ^ Hotlz Jr., Thomas R. Hotlz's Genus List (PDF). 2012 [2022-04-09]. (原始内容 (PDF)存档于2017-08-12). 
  5. ^ Horner, John R.; Weishampel, David B.; Forster, Catherine A. Hadrosauridae. Weishampel, D.B.; Dodson, P.; Osmólska H. (编). The Dinosauria 2nd. Berkeley: University of California Press. 2004: 438–463. ISBN 0-520-24209-2. 
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冥犬龙属
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