冰河龙属

冰河龙属; 化石时期：侏罗纪早期,189–183 Ma PreЄ Є O S D C P T J K Pg N
	复原图
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：	蜥臀目 Saurischia
亚目：	†蜥脚形亚目 Sauropodomorpha
科：	†大椎龙科 Massospondylidae
属：	†冰河龙属 Glacialisaurus; Smith & Pol, 2007
模式种
	汉氏冰河龙; Glacialisaurus hammeri; Smith & Pol, 2007

冰河龙属（学名：Glacialisaurus）是种早期蜥脚形亚目恐龙，生存于侏㑩纪早期，化石发现于南极洲的南极横贯山脉。

正模标本（编号FMNH PR1823）是一个部分后肢与脚部化石，另一个左股骨（编号FMNH PR1822）也被编入此属。这些化石被发现于柯克帕特里克峰（Mount Kirkpatrick），属于汉森组（Hanson Formation）下层，是个拟灰质粉砂岩与泥岩地层。在2007年，由古生物学家Nathan Smith与迪亚戈·玻尔（Diego Pol）将这些化石进行叙述、命名，模式种是汉氏冰河龙（G. hammeri）^[1]。冰河龙的属名意为“冰河蜥蜴”，因其化石是在南极横贯山脉的比尔德莫尔冰川发现^[2]。种名则是以伊利诺州奥古斯塔那学院的William R. Hammer博士为名，Hammer博士是以古动物学与南极洲研究闻名^[1]。

在命名者的系统发生学研究中，冰河龙被归类于大椎龙科，是种非真蜥脚类的蜥脚形亚目恐龙，演化位置比农神龙与板龙还要衍化。冰河龙的脚部特征类似禄丰龙（发现于早侏㑩纪的中国），而系统发生学研究显示冰河龙与禄丰龙可能是近亲；而科罗拉多斯龙、大椎龙等大椎龙科恐龙的演化位置更原始^[1]。近年其他研究也得出相同结论^[3]^[4]。在南极洲发现的冰河龙，代表者在早侏㑩世时期，同时具有原始与衍化的蜥脚形亚目支系存在^[1]^[5]。

参考资料

^ ^1.0 ^1.1 ^1.2 ^1.3 Smith, Nathan D.; and Pol, Diego. Anatomy of a basal sauropodomorph dinosaur from the Early Jurassic Hanson Formation of Antarctica (pdf). Acta Palaeontologica Polonica. 2007, 52 (4): 657–674. ^{[失效链接]}
^ A big find (web). Scientists describe previously undiscovered dinosaur that lived 190 million years ago. The Antarctic Sun. December 20, 2007 [2008-01-13]. （原始内容存档于2008-04-28）.
^ Yates, Adam M. The first complete skull of the Triassic dinosaur Melanorosaurus Haughton (Sauropodomorpha: Anchisauria). Barrett, Paul M.; Batten, David J. (编). Special Papers in Palaeontology 77. London: The Palaeontological Assoc. 2007: 9–55. ISBN 978-1-4051-6933-2.
^ Fernando E. Novas, Martin D. Ezcurra, Sankar Chatterjee and T. S. Kutty. New dinosaur species from the Upper Triassic Upper Maleri and Lower Dharmaram formations of central India. Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 2011, 101 (3–4): 333–349. doi:10.1017/S1755691011020093.
^ Smith, N.D., Makovicky, P.J., Pol, D., Hammer, W.R., and Currie, P.J. The Dinosaurs of the Early Jurassic Hanson Formation of the Central Transantarctic Mountains: Phylogenetic Review and Synthesis (PDF). U.S. Geological Survey and the National Academies. 2007, 2007 (1047srp003): 5 pp. [2008-06-12]. doi:10.3133/of2007-1047.srp003. （原始内容存档 (PDF)于2008-10-13）.

[SP07-1] 1.0 ^1.1 ^1.2 ^1.3 Smith, Nathan D.; and Pol, Diego. Anatomy of a basal sauropodomorph dinosaur from the Early Jurassic Hanson Formation of Antarctica (pdf). Acta Palaeontologica Polonica. 2007, 52 (4): 657–674. ^{[失效链接]}

[SUN-2] A big find (web). Scientists describe previously undiscovered dinosaur that lived 190 million years ago. The Antarctic Sun. December 20, 2007 [2008-01-13]. （原始内容存档于2008-04-28）.

[Yates-3] Yates, Adam M. The first complete skull of the Triassic dinosaur Melanorosaurus Haughton (Sauropodomorpha: Anchisauria). Barrett, Paul M.; Batten, David J. (编). Special Papers in Palaeontology 77. London: The Palaeontological Assoc. 2007: 9–55. ISBN 978-1-4051-6933-2.

[Indiansaupo-4] Fernando E. Novas, Martin D. Ezcurra, Sankar Chatterjee and T. S. Kutty. New dinosaur species from the Upper Triassic Upper Maleri and Lower Dharmaram formations of central India. Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 2011, 101 (3–4): 333–349. doi:10.1017/S1755691011020093.

[DinoAntarctica-5] Smith, N.D., Makovicky, P.J., Pol, D., Hammer, W.R., and Currie, P.J. The Dinosaurs of the Early Jurassic Hanson Formation of the Central Transantarctic Mountains: Phylogenetic Review and Synthesis (PDF). U.S. Geological Survey and the National Academies. 2007, 2007 (1047srp003): 5 pp. [2008-06-12]. doi:10.3133/of2007-1047.srp003. （原始内容存档 (PDF)于2008-10-13）.

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