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南阳龙属

南阳龙属
化石时期:白垩纪后期[1]94–72 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
演化支 鸭嘴龙形类 Hadrosauriformes
总科: 鸭嘴龙超科 Hadrosauroidea
属: 南阳龙属 Nanyangosaurus
Xu et al., 2000
模式种
诸葛南阳龙
Nanyangosaurus zhugeii

Xu et al., 2000

南阳龙属属名Nanyangosaurus,意为“南阳蜥蜴”)是中型的禽龙类恐龙[2],目前多被认为属于鸭嘴龙超科[3][4]模式种诸葛南阳龙N. zhugeii),化石发现于中国河南省西南部的夏馆-高丘盆地[5],其所在的夏馆组底部地层显示生存年代可能不早于晚白垩世土仑期[1]

在1994年,牠们的化石正模标本,编号IVPP V 11821)于中国河南省南阳市内乡县发现,为一具不完整的骨架,缺少头颅骨,包含:八节后段背椎、六节荐椎、36节尾椎、部分坐骨、以及前肢与后肢骨头。模式种诸葛南阳龙Nanyangosaurus zhugeii),是由徐星赵喜进董枝明、李占扬、黄万波吕君昌等人在2000年命名。属名意为“南阳的蜥蜴”;种名则是以三国时代人物诸葛亮为名,他在出世以前曾待在南阳地区。

南阳龙的股骨长51.7公分,身长估计约4到5米。前肢相当长,具有长手掌。手掌的第一指、第一掌骨没有保存下来,研究人员推测,南阳龙生前就可能没有拇指,不类似其近亲。根据亲缘分支分类法分析,南阳龙是鸭嘴龙超科的原始物种,比原巴克龙还原始,是鸭嘴龙科的近亲。

参考资料

  1. ^ 1.0 1.1 王德有, 曹希强, 赵鸿燕, 曹美珍, 符光宏, 闫丰超, 强武钢, 王亚琼. 河南夏馆-高丘盆地夏馆组无脊椎动物化石的新发现及地层划分对比. 地质学报. 2013, 87 (8): 1049-1058. ISSN 0001-5717. 
  2. ^ 徐星, 赵喜进, 吕君昌, 黄万波, 李占扬, 董枝明. 河南内乡桑坪组一新禽龙及其地层学意义 (PDF). 古脊椎动物学报. 2000, 38 (3): 176-191 [2021-01-27]. ISSN 1000-3118. (原始内容存档 (PDF)于2020-05-17). 
  3. ^ McDonald, A. T. Phylogeny of Basal Iguanodonts (Dinosauria: Ornithischia): An Update. PLoS ONE. 2012, 7 (5): e36745 [2021-08-16]. ISSN 1932-6203. doi:10.1371/journal.pone.0036745. (原始内容存档于2021-01-11). 
  4. ^ Xing, H.; Wang, D.; Han, F.; Sullivan, C.; Ma, Q.; He, Y.; Hone, D. W. E.; Yan, R.; Du, F.; Xu, X. A New Basal Hadrosauroid Dinosaur (Dinosauria: Ornithopoda) with Transitional Features from the Late Cretaceous of Henan Province, China. PLoS ONE. 2014, 9 (6): e98821 [2021-08-16]. ISSN 1932-6203. doi:10.1371/journal.pone.0098821. (原始内容存档于2021-01-18). 
  5. ^ 周世全, 朱广彬, 冯祖杰. 河南内乡夏馆—高丘盆地的夏馆组及其时代. 资源调查与环境. 2003, 24 (1): 69-74. ISSN 1671-4814. 
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南阳龙属
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