橡樹龍科

橡树龙科; 化石时期：中侏儸紀到晚白堊紀，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：	恐龍總目 Dinosauria
目：	†鸟臀目 Ornithischia
亚目：	†鸟脚亚目 Ornithopoda
演化支：	†禽龍類 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; 卡洛夫龍属 Callovosaurus; 橡樹龍属 Dryosaurus; 難捕龍屬 Dysalotosaurus; 艾爾雷茲龍属 Elrhazosaurus; 康納龍属 Kangnasaurus; 曠野龍属 Valdosaurus;

橡樹龍科（Dryosauridae）是鳥臀目鳥腳亚目禽龍類的一科，生存於侏儸紀晚期到白堊紀早期，分布於北美洲、非洲與歐洲^[1]^[2]^[3]^[4]。

敘述

橡樹龍科是群行動快速的小型草食性恐龍，外表介於稜齒龍類與禽龍類之間，與彎龍科、禽龍科的差異在於牙齒與骨盆。牠們的前肢長，頭骨呈三角形，嘴部缺乏牙齒，其頜部結構可增加兩側的咀嚼力道。身體結構很類似稜齒龍類，修長後肢顯示奔跑速度快。

目前已發現成年體與幼年體化石。已在美國西部、非洲、歐洲等地發現化石。

分類

橡樹龍科被定義為：包含高橡樹龍，但不包含沃克氏副櫛龍在內的最大演化支。在過去研究歷史，橡樹龍科的卡洛夫龍、康納龍常被認為是疑名；曠野龍、Dysalotosaurus, 艾爾雷茲龍（Elrhazosaurus）常被認為是模式屬橡樹龍的種。近年研究發現，這些屬是有效的獨立屬^[3]^[4]^[5]^[6]^[7]。

以下演化樹來自於保羅·巴雷特（Paul M. Barrett）等人的2011年研究^[7]：

凹齒龍科

	木他龍

	凹齒龍

	查摩西斯龍

Dryomorpha

橡樹龍科

Dysalotosaurus

	曠野龍

	艾爾雷茲龍

參考文獻

^ 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.

外部連結

[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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