强龙属

强龙属; 化石时期：上白垩纪，66 Ma PreЄ Є O S D C P T J K Pg N ▼
	1901年绘制的强龙想像图
保护状况
	无效状况
科学分类
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：	†强龙属 Thespesius; Leidy, 1856
模式种
	西方强龙; Thespesius occidentalis; Leidy, 1856
异名
	Agathaumas milo Cope, 1874;

强龙属（属名：Thespesius）意为“不可思议的个体”，是鸭嘴龙科恐龙的一个疑名，化石只有两个尾椎与一个趾骨，发现于南达科他州的兰斯组，年代起初被认为是中新世，现在被认为是上白垩纪的晚马斯特里赫特阶^[1]。

在1855年，地质学家Ferdinand Vandiveer Hayden将他发现的一些化石，寄给在费城的古生物学家约瑟夫·莱迪（Joseph Leidy）。这些化石发现于内布拉斯加领地（现在的南达科他州），包含两节尾椎、一个趾骨。在1856年，约瑟夫·莱迪将这三个化石命名为西方强龙（Thespesius occidentalis），属名在古希腊文意为“不可思议的”，意指这些化石的巨大体型。种名在拉丁文意指“西方的”。由于Hayden宣称化石发现于第三纪中新世的地层，化石有可能来自于哺乳类，莱迪在命名时没有使用常见的恐龙字根"saurus"，但莱迪认为这些化石属于某种恐龙。

分类

如同被约瑟夫·莱迪（Joseph Leidy）命名的糙齿龙，牠们拥有非常复杂的分类历史，但被现代恐龙古生物学家所废除^[2]^[3]。

目前有两个种是从强龙属所独立出来的：萨克其万强龙（T. saskatchewanensis）^[4]目前被认为是萨斯喀彻温埃德蒙顿龙、^[5]^[6]埃德蒙顿强龙（T. edmontoni）^[7]目前被认为跟埃德蒙顿龙的Edmontosaurus annectens是同一种动物^[5]^[6]。以上两个种曾被分类于鸭龙长达多年^[8]。

参考资料

^ Leidy, J. (1856). Notice of extinct Vertebrata, discovered by Dr. F. V. Hayden during the expedition to the Sioux country under the command of Lieut. G.K. Warren. Proceedings of the Academy of Natural Science Philadelphia 8:311-312.
^ Creisler, B.S. (2006). Deciphering duckbills. in: K. Carpenter (ed.), Horns and Beaks: Ceratopsian and Ornithopod Dinosaurs. Indiana University Press: Bloomington and Indianapolis, 185-210. ISBN 0-253-34817-X
^ Creisler, B.S. (2007). Deciphering duckbills. in: K. Carpenter (ed.), Horns and Beaks: Ceratopsian and Ornithopod Dinosaurs. Indiana University Press: Bloomington and Indianapolis, 185-210. ISBN 0-253-34817-X
^ Sternberg, C.M. (1926). A new species of Thespesius from the Lance Formation of Saskatchewan. Canada Department of Mines Geological Survey Bulletin (Geological Series) 44(46):73-84.
^ ^5.0 ^5.1 Weishampel, D.B., and Horner, J.R. (1990). Hadrosauridae. In: Weishampel, D.B., Dodson, P., and Osmólska, H. (eds.). The Dinosauria. University of California Press:Berkeley, 534-561. ISBN 0-520-24209-2
^ ^6.0 ^6.1 Horner, J.R., Weishampel, D.B., and Forster, C.A. (2004). Hadrosauridae. In: Weishampel, D.B., Dodson, P., and Osmólska, H. (eds.). The Dinosauria (second edition). University of California Press:Berkeley, 438-463. ISBN 0-520-06727-4
^ Gilmore, C.W. (1924). A new species of hadrosaurian dinosaur from the Edmonton Formation (Cretaceous) of Alberta. Canada Department of Mines Geological Survey Bulletin (Geological Series) 38(43):13-26.
^ Lull, R.S., and Wright, N.E. (1942). Hadrosaurian Dinosaurs of North America. Geological Society of America Special Paper 40:1-242.

外部链接

恐龙.NET——中国古生物门户网站。

[JL56-1] Leidy, J. (1856). Notice of extinct Vertebrata, discovered by Dr. F. V. Hayden during the expedition to the Sioux country under the command of Lieut. G.K. Warren. Proceedings of the Academy of Natural Science Philadelphia 8:311-312.

[BC06-2] Creisler, B.S. (2006). Deciphering duckbills. in: K. Carpenter (ed.), Horns and Beaks: Ceratopsian and Ornithopod Dinosaurs. Indiana University Press: Bloomington and Indianapolis, 185-210. ISBN 0-253-34817-X

[BC07-3] Creisler, B.S. (2007). Deciphering duckbills. in: K. Carpenter (ed.), Horns and Beaks: Ceratopsian and Ornithopod Dinosaurs. Indiana University Press: Bloomington and Indianapolis, 185-210. ISBN 0-253-34817-X

[CMS26-4] Sternberg, C.M. (1926). A new species of Thespesius from the Lance Formation of Saskatchewan. Canada Department of Mines Geological Survey Bulletin (Geological Series) 44(46):73-84.

[WH90-5] 5.0 ^5.1 Weishampel, D.B., and Horner, J.R. (1990). Hadrosauridae. In: Weishampel, D.B., Dodson, P., and Osmólska, H. (eds.). The Dinosauria. University of California Press:Berkeley, 534-561. ISBN 0-520-24209-2

[HWF04-6] 6.0 ^6.1 Horner, J.R., Weishampel, D.B., and Forster, C.A. (2004). Hadrosauridae. In: Weishampel, D.B., Dodson, P., and Osmólska, H. (eds.). The Dinosauria (second edition). University of California Press:Berkeley, 438-463. ISBN 0-520-06727-4

[CWG24-7] Gilmore, C.W. (1924). A new species of hadrosaurian dinosaur from the Edmonton Formation (Cretaceous) of Alberta. Canada Department of Mines Geological Survey Bulletin (Geological Series) 38(43):13-26.

[LW42-8] Lull, R.S., and Wright, N.E. (1942). Hadrosaurian Dinosaurs of North America. Geological Society of America Special Paper 40:1-242.

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