For faster navigation, this Iframe is preloading the Wikiwand page for 山奔龙属.

山奔龙属

山奔龙属
化石时期:白垩纪晚期,76.7 Ma
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
科: 奇异龙科 Thescelosauridae
亚科: 山奔龙亚科 Orodrominae
属: 山奔龙属 Orodromeus
Horner & Weishampel, 1988
模式种
马氏奔山龙
Orodromeus makelai

Horner & Weishampel, 1988

山奔龙属属名Orodromeus),又名奔山龙属,是鸟臀目恐龙的一个,生存于白垩纪晚期(坎潘阶)的北美洲,约7670万年前的蒙大拿州,化石仅发现于双麦迪逊组。

发现与命名

[编辑]

山奔龙的化石是由Robert Makela发现于蒙大拿州提顿县,跟慈母龙发现于相同地区。模式种马氏山奔龙O. makelai),是由杰克·霍纳(Jack Horner)与大卫·威显穆沛(David B. Weishampel)在1988年叙述、命名。属名意为“山的奔跑者”,种名则是以发现化石的Robert Makela为名[1]

正模标本(编号MOR 294)是一个部分身体骨骼与头颅骨,发现于双麦迪逊组(Two Medicine Formation)的下层,地质年代约7500万年前,相当于白垩纪晚期的坎潘阶。副模标本包含:编号MOR 249标本的19个蛋化石与胚胎化石、编号PP 22412标本的后肢化石、编号MOR 331标本的ㄧ个部分身体骨骼、编号MOR 248的头颅骨与身体骨骼、编号MOR 403标本的脑壳[1]。目前还没有奔山龙的详细研究,但过去曾有一篇奔山龙的未发表研究[2]

叙述

[编辑]

山奔龙是小型、二足、草食性恐龙,可能与惧龙野牛龙等恐龙共同生存于同一地区。全长估计约2.5米[1]。鉴定特征包含眼睑骨后端接触到眶后骨颧骨有隆起、手腕骨头没有愈合、上颌骨齿骨的牙齿呈三角形[1]

山奔龙胚胎化石的骨头、牙齿已发展良好,霍纳等人推测山奔龙是早熟性动物;而生存于相同环境的慈母龙,幼体孵化后仍需要长时间的亲代养育[1]

山奔龙被推测是穴居动物,如同牠们的近亲掘奔龙,这是根据牠们骨头的散布与地点来判断的[3]

分类

[编辑]

山奔龙被归类于棱齿龙科,是已知生存年代最晚的物种[1]。目前棱齿龙类被视为并系群,而奔山龙是真鸟脚类的原始物种。

大众文化

[编辑]

山奔龙出现在探索频道的《恐龙星球》(Dinosaur Planet)电视节目第三辑,在节目里牠们以群体方式生活,并且有一群伤齿龙猎食牠们。

参考资料

[编辑]
  1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 Horner, J. and Weishampel, D., 1988, “A comparative embryological study of two ornithischian dinosaurs”, Nature (London), 332(No. 6161): 256-257 (1988)
  2. ^ Scheetz, R.D., 1999, Osteology of Orodromeus makelai and the phylogeny of basal ornithopod dinosaurs D. Ph. Thesis in Biology, Montana State University, Bozeman, 189 pp
  3. ^ Varricchio, David J.; Martin, Anthony J.; and Katsura, Yoshihiro. First trace and body fossil evidence of a burrowing, denning dinosaur (PDF). Proceedings of the Royal Society B: Biological Sciences. 2007,. online preprint [2007-03-22]. doi:10.1098/rspb.2006.0443.  [永久失效链接]
{{bottomLinkPreText}} {{bottomLinkText}}
山奔龙属
Listen to this article

This browser is not supported by Wikiwand :(
Wikiwand requires a browser with modern capabilities in order to provide you with the best reading experience.
Please download and use one of the following browsers:

This article was just edited, click to reload
This article has been deleted on Wikipedia (Why?)

Back to homepage

Please click Add in the dialog above
Please click Allow in the top-left corner,
then click Install Now in the dialog
Please click Open in the download dialog,
then click Install
Please click the "Downloads" icon in the Safari toolbar, open the first download in the list,
then click Install
{{::$root.activation.text}}

Install Wikiwand

Install on Chrome Install on Firefox
Don't forget to rate us

Tell your friends about Wikiwand!

Gmail Facebook Twitter Link

Enjoying Wikiwand?

Tell your friends and spread the love:
Share on Gmail Share on Facebook Share on Twitter Share on Buffer

Our magic isn't perfect

You can help our automatic cover photo selection by reporting an unsuitable photo.

This photo is visually disturbing This photo is not a good choice

Thank you for helping!


Your input will affect cover photo selection, along with input from other users.

X

Get ready for Wikiwand 2.0 🎉! the new version arrives on September 1st! Don't want to wait?