福井盜龍屬

福井盗龙属
化石时期：白垩纪早期，127–115 Ma
骨骼重建
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： 恐龍總目 Dinosauria
目： 蜥臀目 Saurischia
亚目： 獸腳亞目 Theropoda
演化支： 新獸腳類 Neotheropoda
演化支： 鳥吻類 Averostra
演化支： 坚尾龙类 Tetanurae
演化支： 俄里翁龍類 Orionides
演化支： 鳥獸腳類 Avetheropoda
演化支： †大盗龙类 Megaraptora
属： †福井盗龙属 Fukuiraptor
Azuma & Currie, 2000
模式種
†北谷福井盗龙
Fukuiraptor kitadaniensis
Azuma & Currie, 2000

福井盗龙（属名：Fukuiraptor，意为“福井县的盗贼”）是生存于现在日本的一属早白垩世（巴列姆阶或阿普第阶）中型大盗龙类兽脚亚目恐龙，[1]所知来自于北谷组（英语：Kitadani Formation），[2]也可能是濑林组（英语：Sebayashi Formation）。[3]

叙述

骨骼重建和正模标本化石（右下角）

正模标本是一具在福井县胜山市附近北谷采石场（英语：Kitadani Formation）（Kitadani Quarry）中发现的部分骨骼（编号为FPDM-V97122）。该标本被认为生前测量长度约为4.2米、重175千克且未发育成熟，而成年恐龙将会更大。在采石场还发现了许多其他个体的遗骸以及大量归类于该物种的肱骨、股骨和牙齿。[2]然而，同一地点发现的其他个体大多是小于正模标本个体的幼体（柯里＆东洋一，2006），最小的不到正模标本体型的四分之一。在濑林组（英语：Sebayashi Formation）的砾岩 中发现的一颗牙齿（NDC-P0001）也被归类于福井盗龙。[4]2010年，格雷戈里·S·保罗（英语：Gregory S. Paul） 给出的尺寸为5米（16英尺）长、300千克（660磅）重。[5]Molina-Pérez和Larramendi在2016年估计其尺寸为4.3米（14.1英尺）长、590千克（1300磅）重。[6]

福井盗龙与众不同的牙齿显示出与鲨齿龙科 （非常扁平，形如刀片并具有褶皱的珐琅质）和暴龙科（锯齿附近有倾斜的血槽）的相似性。[2]正模标本还具有非常大且扁平的手爪，为最初分类于驰龙科（因为手爪被误认为是脚爪）以及现在被分类于大盗龙类起到作用。[7]

分类

最初被发现时，它被认为是驰龙科的一员，其叙述者认为它是与异特龙有关的肉食龙类。近期研究认为它是一种大盗龙类――一个神秘的分类群，可能是新猎龙科的一部分。[7]然而，最期另一项分析表明所有大盗龙类实际上都是暴龙超科，这将该属重新分类为一种暴龙超科的虚骨龙类。[8]最近对兽脚类瓜利乔龙进行的系统发育分析表明，福井盗龙和其它大盗龙类要么是异特龙超科，要么是非暴龙超科的基底虚骨龙类。[9]

外部链接

参考资料

  1. ^ Azuma, Yoichi; Philip J., Currie. A new carnosaur (Dinosauria: Theropoda) from the Lower Cretaceous of Japan. Canadian Journal of Earth Sciences. 2000, 37 (12): 1735–1753. Bibcode:2000CaJES..37.1735A. doi:10.1139/e00-064. 
  2. ^ 2.0 2.1 2.2 Currie, P.J.; Azuma, Y. New specimens, including a growth series, of Fukuiraptor (Dinosauria, Theropoda) from the Lower Cretaceous Kitadani Quarry of Japan. J. Paleont. Soc. Korea. 2006, 22 (1): 173–193 –通过ResearchGate. 
  3. ^ A tooth of Fukuiraptor aff. F. kitadaniensis from the Lower Cretaceous Sebayashi Formation, Sanchu Cretaceous, Japan: 東京学芸大学リポジトリ. ir.u-gakugei.ac.jp. [2020-10-09]. （原始内容存档于2021-01-09）. 
  4. ^ Molnar, Ralph E.; Obata, Ikuwo; Tanimoto, Masahiro; Matsukawa, Masaki. A tooth of Fukuiraptor aff. F. kitadaniensis from the Lower Cretaceous Sebayashi Formation, Sanchu Cretaceous, Japan. Bulletin of Tokyo Gakugei University, Division of Natural Sciences. 2009, 61: 105–117 –通过ResearchGate. 
  5. ^ Paul, Gregory S. The Princeton Field Guide to Dinosaurs. New Jersey: Princeton University Press. 2010: 98. 
  6. ^ Molina-Pérez & Larramendi. Récords y curiosidades de los dinosaurios Terópodos y otros dinosauromorfos. Barcelona, Spain: Larousse. 2016: 263. 
  7. ^ 7.0 7.1 Benson, R. B. J.; Carrano, M. T.; Brusatte, S. L. A new clade of archaic large-bodied predatory dinosaurs (Theropoda: Allosauroidea) that survived to the latest Mesozoic. Naturwissenschaften. 2010, 97 (1): 71–78. Bibcode:2010NW.....97...71B. PMID 19826771. S2CID 22646156. doi:10.1007/s00114-009-0614-x. 
  8. ^ Novas, F. E.; Agnolín, F. L.; Ezcurra, M. D.; Canale, J. I.; Porfiri, J. D. Megaraptorans as members of an unexpected evolutionary radiation of tyrant-reptiles in Gondwana. Ameghiniana. 2012, 49 (4(R): Suplemento Resúmenes [Abstracts]): R33 [2021-01-07]. （原始内容存档于2016-03-11）. 
  9. ^ Apesteguía, Sebastián; Smith, Nathan D.; Valieri, Rubén Juárez; Makovicky, Peter J. An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina. PLOS ONE. 13 July 2016, 11 (7): e0157793. Bibcode:2016PLoSO..1157793A. ISSN 1932-6203. PMC 4943716 可免费查阅. PMID 27410683. doi:10.1371/journal.pone.0157793. 

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