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康纳龙属

康纳龙属
化石时期:下白垩纪
科学分类 编辑
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: 橡树龙科 Dryosauridae
属: 康纳龙属 Kangnasaurus
Haughton, 1915
模式种
库氏康纳龙
Kangnasaurus coetzeei

Haughton, 1915

康纳龙属学名Kangnasaurus)是鸟脚亚目禽龙类恐龙的一,生存于下白垩纪南非。康纳龙的化石只有一颗牙齿,可能还有一些身体部分的骨头,故通常被认为是疑名。康纳龙被分类在类似橡树龙橡树龙科

发现历史

模式种库氏康纳龙K. coetzeei),是在1915年由席尼·贺顿(Sidney H. Haughton)描述、命名的。属名是以化石发现处的Kangnas农场为名,种名则是以农场拥有者Coetzee为名正模标本(编号SAM 2732)是一颗牙齿,发现于南非开普省奥兰治河流域的Kangnas农场,位于地底34米处[1]。化石发现处的地层年代仍不确定,可能属于白垩纪早期[2]。席尼·贺顿当时认为这颗牙齿来自于上颌骨;但在1985年,Michael Cooper再度鉴定,发现这颗牙齿来自于齿骨[3]。这两个不同的鉴定结果造成分类上的差异,席尼·贺顿将康纳龙归类于禽龙科[1],而Michael Cooper将康纳龙归类于更原始的橡树龙科[3]

席尼·贺顿曾将数个其他化石归类于康纳龙,包含:五个部分股骨、一部分胫骨、一个部分跖骨、脊椎、以及一些无法辨识的骨头。以上化石发现于其他地点,席尼·贺顿并不确定这个化石是否属于康纳龙[1];Michael Cooper也没有做出结论[3]

康纳龙通常被认为是疑名[4][5]。在2007年,Ruiz-Omeñaca等人的橡树龙科研究比较康纳龙与其他橡树龙科的胫骨,认为康纳龙有可能是个有效属[2]。如同其他基础禽龙类,康纳龙是种二足植食性动物[5]

参考资料

  1. ^ 1.0 1.1 1.2 Haughton, Sidney H. On some dinosaur remains from Bushmanland. Transactions of the Royal Society of South Africa. 1915, 5: 259–264. doi:10.1080/00359191509519723. 
  2. ^ 2.0 2.1 Ruiz-Omeñaca, José Ignacio; Pereda Suberbiola, Xavier; 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. 
  3. ^ 3.0 3.1 3.2 Cooper, Michael R. A revision of the ornithischian dinosaur Kangnasaurus coetzeei Haughton, with a classification of the Ornithischia. Annals of the South African Museum. 1985, 95 (8): 281–317. 
  4. ^ Sues, Hans-Dieter; and Norman, David B. Hypsilophodontidae, Tenontosaurus, Dryosauridae. Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.) (编). The Dinosauria 1st. Berkeley: University of California Press. 1990: 498–509. ISBN 0-520-06727-4. 
  5. ^ 5.0 5.1 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. 

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康纳龙属
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