三角洲奔龍屬












 

如何讀生物分類框
三角洲奔龍屬
化石時期： 白堊紀晚期森诺曼期，95 Ma

PreЄ

Є

O

S

D

C

P

T

J

K

Pg

N



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三角洲奔龍的骨架
三角洲奔龍的骨架


科學分類










































界：
動物界 Animalia
門：
脊索動物門 Chordata
綱：
蜥形綱 Sauropsida

超目：
恐龍總目 Dinosauria
目：
蜥臀目 Saurischia

亞目：
 獸腳亞目 Theropoda


鸟吻类 Averostra

（未分级）
坚尾龙类 Tetanurae
屬：
†三角洲奔龍屬 Deltadromeus
Sereno等人，1996
種：
敏捷三角洲奔龍 D.agilis


二名法

敏捷三角洲奔龙
Deltadromeus agilis
Sereno，1996

三角洲奔龍屬（學名：Deltadromeus）意為「三角洲奔跑者」，是坚尾龙类的一屬肉食性恐龍，生活於上白堊紀，距今9,500萬年前的北非。牠們的後肢強壯但瘦長，可見是一種迅速致命的獵食動物。一個未公佈的研究顯示，牠可能是最長的肉食性恐龍之一，可達13.3米長，幾乎是南方巨獸龍的長度，而體重約3.5公噸，較肉食龍下目為修長。較為完整的正模標本，則估計有8.1公尺長[1]。


三角洲奔龍的化石原先是由Gabrielle Lyon在1995年所發現，隔年由保羅·塞里諾（Paul Sereno）所描述[2]。牠的骨骼化石是與較大型的鯊齒龍一同被發現，且可能與更大型的棘龍生活於同一時代。模式種是敏捷三角洲奔龍（D. agilis），其名字是因牠的構造十分有利奔跑，而以牠這種體型來說是十分的迅速，再者，牠是於化石化的河流三角洲中被發現。三角洲奔龍原先被描述成一類接近傷龍的大型虛骨龍類，后来發現牠是屬於角鼻龍下目，2016年Gualicho shinyae的发现让三角洲奔龙变成了坚尾龙类[3]。


三角洲奔龍被認為可能是巴哈利亞龍的次同物異名。



分类




位于日本的重建骨架，这副骨架的头骨是备用的。


三角洲奔龙原本被描述为大型的角鼻龙类，但对Gualicho的研究认为三角洲奔龙其实属于坚尾龙类，2003年，研究指出它应该属于西北阿根廷龙科，[4]虽然其他种属都较原始，并可能和轻巧龙与泥潭龙是近亲。[5][6]2016年对于西北阿根廷龙科的全面研究发现这些诠释是实际上是对的。[7]


以下演化树出自Oliviar Rauhut与Matthew Carrano在日前的研究。[7]








阿贝力龙超科 Abelisauroidea 













阿贝力龙科 Abelisauridae

西北阿根廷龙科 Noasauridae


















福左轻鳄龙属 Laevisuchus



三角洲奔龙属 Deltadromeus














轻巧龙亚科 Elaphrosaurinae













泥潭龙属 Limusaurus
















CCG 20011



轻巧龙属 Elaphrosaurus





西北阿根廷龙亚科 Noasaurinae


















速龙属 Velocisaurus



西北阿根廷龙属 Noasaurus



恶龙属 Masiakasaurus













參考資料





  1. ^ Mortimer, M. (2004), "Carnosauria" 互联网档案馆的存檔，存档日期2008-01-15., The Theropod Database 互联网档案馆的存檔，存档日期2008-01-09., viewed September 17, 2007. 存档副本. [2008-01-23]. （原始内容存档于2008-01-09）. .


  2. ^ Paul C. Sereno, Didier B. Dutheil, M. Iarochene, Hans C. E. Larsson, Gabrielle H. Lyon, Paul M. Magwene, Christian A. Sidor, David J. Varricchio, Jeffrey A. Wilson. Predatory Dinosaurs from the Sahara and Late Cretaceous Faunal Differentiation. Science. 1996, 272 (5264): 986–991. 


  3. ^ Carrano & Sampson (2008). "The Phylogeny of Ceratosauria (Dinosauria: Theropoda)". JSysPaleo 6: 183-236


  4. ^ Wilson, Sereno, Srivastava, Bhatt, Khosla and Sahni. (2003). "A new abelisaurid (Dinosauria, Theropoda) from the Lameta Formation (Cretaceous, Maastrichtian) of India." Contr. Mus. Palaeont. Univ. Mich., 31: 1-42.


  5. ^ Carrano & Sampson (2008). "The Phylogeny of Ceratosauria (Dinosauria: Theropoda)". JSysPaleo 6: 183-236


  6. ^ Xu, X., Clark, J.M., Mo, J., Choiniere, J., Forster, C.A., Erickson, G.M., Hone, D.W.E., Sullivan, C., Eberth, D.A., Nesbitt, S., Zhao, Q., Hernandez, R., Jia, C.-K., Han, F.-L., and Guo, Y. (2009). "A Jurassic ceratosaur from China helps clarify avian digital homologies." Nature, 459(18): 940–944. doi:10.1038/nature08124


  7. ^ 7.07.1 Rauhut, O.W.M., and Carrano, M.T. (2016). The theropod dinosaur Elaphrosaurus bambergi Janensch, 1920, from the Late Jurassic of Tendaguru, Tanzania. Zoological Journal of the Linnean Society, (advance online publication) doi:10.1111/zoj.12425




外部連結


  • 恐龍博物館——三角洲奔龍



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