橡树龙科

橡树龙科; 化石时期：中侏㑩纪到晚白垩纪，163–115 Ma PreЄ Є O S D C P T J K Pg N
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
演化支：	†禽龙类 Iguanodontia
演化支：	†橡树龙形态类 Dryomorpha
科：	†橡树龙科 Dryosauridae; Milner & Norman，1984
演化支
	东橡树龙属 Eousdryosaurus; 卡洛夫龙属 Callovosaurus; 橡树龙属 Dryosaurus; 难捕龙属 Dysalotosaurus; 艾尔雷兹龙属 Elrhazosaurus; 康纳龙属 Kangnasaurus; 旷野龙属 Valdosaurus;

橡树龙科（Dryosauridae）是鸟臀目鸟脚亚目禽龙类的一科，生存于侏㑩纪晚期到白垩纪早期，分布于北美洲、非洲与欧洲^[1]^[2]^[3]^[4]。

叙述

橡树龙科是群行动快速的小型草食性恐龙，外表介于棱齿龙类与禽龙类之间，与弯龙科、禽龙科的差异在于牙齿与骨盆。它们的前肢长，头骨呈三角形，嘴部缺乏牙齿，其颌部结构可增加两侧的咀嚼力道。身体结构很类似棱齿龙类，修长后肢显示奔跑速度快。

目前已发现成年体与幼年体化石。已在美国西部、非洲、欧洲等地发现化石。

分类

橡树龙科被定义为：包含高橡树龙，但不包含沃克氏副栉龙在内的最大演化支。在过去研究历史，橡树龙科的卡洛夫龙、康纳龙常被认为是疑名；旷野龙、Dysalotosaurus, 艾尔雷兹龙（Elrhazosaurus）常被认为是模式属橡树龙的种。近年研究发现，这些属是有效的独立属^[3]^[4]^[5]^[6]^[7]。

以下演化树来自于保罗·巴雷特（Paul M. Barrett）等人的2011年研究^[7]：

凹齿龙科

	木他龙

	凹齿龙

	查摩西斯龙

Dryomorpha

橡树龙科

Dysalotosaurus

	旷野龙

	艾尔雷兹龙

参考文献

^ Norman, David B.; Weishampel, David B. Iguanodontidae and related ornithopods. Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.) (编). The Dinosauria. Berkeley: University of California Press. 1990: 510–533. ISBN 0-520-06727-4.
^ Norman, David B. Basal Iguanodontia. Weishampel, D.B., Dodson, P., and Osmólska, H. (eds.) (编). The Dinosauria 2nd. Berkeley: University of California Press. 2004: 413–437. ISBN 0-520-24209-2.
^ ^3.0 ^3.1 Ruiz-Omeñaca, José Ignacio; Pereda Suberbiola, Xabier; and Galton, Peter M. Callovosaurus leedsi, the earliest dryosaurid dinosaur (Ornithischia: Euornithopoda) from the Middle Jurassic of England. Carpenter, Kenneth (ed.) (编). Horns and Beaks: Ceratopsian and Ornithopod Dinosaurs. Bloomington and Indianapolis: Indiana University Press. 2007: 3–16. ISBN 0-253-34817-X.
^ ^4.0 ^4.1 Galton, Peter M. Notes on Neocomian (Late Cretaceous) ornithopod dinosaurs from England – Hypsilophodon, Valdosaurus, "Camptosaurus", "Iguanodon" – and referred specimens from Romania and elsewhere (pdf). Revue de Paléobiologie. 2009, 28 (1): 211–273 [2010-02-25]. （原始内容存档 (PDF)于2011-07-08）.
^ McDonald, A.T.; Kirkland, J.I.; DeBlieux, D.D.; Madsen, S.K.; Cavin, J.; Milner, A.R.C.; Panzarin, L. New Basal Iguanodonts from the Cedar Mountain Formation of Utah and the Evolution of Thumb-Spiked Dinosaurs. PLoS ONE. 2010, 5 (11): e14075. PMC 2989904  . PMID 21124919. doi:10.1371/journal.pone.0014075.
^ Andrew T. McDonald. The taxonomy of species assigned to Camptosaurus (Dinosauria: Ornithopoda) (PDF). Zootaxa. 2011, 2783: 52–68 [2012-05-02]. （原始内容存档 (PDF)于2012-04-12）.
^ ^7.0 ^7.1 Paul M. Barrett, Richard J. Butler, Richard J. Twitchett and Stephen Hutt. New material of Valdosaurus canaliculatus (Ornithischia: Ornithopoda) from the Lower Cretaceous of southern England. Special Papers in Palaeontology. 2011, 86: 131–163.

外部链接

[NW90-1] Norman, David B.; Weishampel, David B. Iguanodontidae and related ornithopods. Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.) (编). The Dinosauria. Berkeley: University of California Press. 1990: 510–533. ISBN 0-520-06727-4.

[DBN04-2] Norman, David B. Basal Iguanodontia. Weishampel, D.B., Dodson, P., and Osmólska, H. (eds.) (编). The Dinosauria 2nd. Berkeley: University of California Press. 2004: 413–437. ISBN 0-520-24209-2.

[JROetal07-3] 3.0 ^3.1 Ruiz-Omeñaca, José Ignacio; Pereda Suberbiola, Xabier; and Galton, Peter M. Callovosaurus leedsi, the earliest dryosaurid dinosaur (Ornithischia: Euornithopoda) from the Middle Jurassic of England. Carpenter, Kenneth (ed.) (编). Horns and Beaks: Ceratopsian and Ornithopod Dinosaurs. Bloomington and Indianapolis: Indiana University Press. 2007: 3–16. ISBN 0-253-34817-X.

[PMG09-4] 4.0 ^4.1 Galton, Peter M. Notes on Neocomian (Late Cretaceous) ornithopod dinosaurs from England – Hypsilophodon, Valdosaurus, "Camptosaurus", "Iguanodon" – and referred specimens from Romania and elsewhere (pdf). Revue de Paléobiologie. 2009, 28 (1): 211–273 [2010-02-25]. （原始内容存档 (PDF)于2011-07-08）.

[iguanacolossus-5] McDonald, A.T.; Kirkland, J.I.; DeBlieux, D.D.; Madsen, S.K.; Cavin, J.; Milner, A.R.C.; Panzarin, L. New Basal Iguanodonts from the Cedar Mountain Formation of Utah and the Evolution of Thumb-Spiked Dinosaurs. PLoS ONE. 2010, 5 (11): e14075. PMC 2989904  . PMID 21124919. doi:10.1371/journal.pone.0014075.

[McDonald-6] Andrew T. McDonald. The taxonomy of species assigned to Camptosaurus (Dinosauria: Ornithopoda) (PDF). Zootaxa. 2011, 2783: 52–68 [2012-05-02]. （原始内容存档 (PDF)于2012-04-12）.

[Phylogeny-7] 7.0 ^7.1 Paul M. Barrett, Richard J. Butler, Richard J. Twitchett and Stephen Hutt. New material of Valdosaurus canaliculatus (Ornithischia: Ornithopoda) from the Lower Cretaceous of southern England. Special Papers in Palaeontology. 2011, 86: 131–163.

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