| 4种平胸鸟类腰荐部骨骼的比较 |
| |
| 引用本文： | 张子慧,侯连海. 4种平胸鸟类腰荐部骨骼的比较[J]. 动物学杂志, 2006, 41(1): 100-102 |
| |
| 作者姓名： | 张子慧 侯连海 |
| |
| 作者单位： | 首都师范大学生命科学学院,北京,100037;中国科学院古脊椎动物与古人类研究所,北京,100044 |
| |
| 摘 要： | 对鹤鸵(Casuarius casuarius)、鸸鹋(Dromaius novaehollandiae)、美洲鸵鸟(Rhea americana)和鸵鸟(Struthio camelus)的腰荐部骨骼进行了对比。鸸鹋与鹤鸵在愈合荐骨的数目与构成、腰带的结构方面最为相似,均为开放式骨盆。美洲鸵鸟和鸵鸟均为非开放式骨盆,前者的坐骨大部愈合,后者的耻骨后角左右愈合。与突胸鸟类对比发现:平胸类的愈合荐骨相对较长,髂骨后翼狭窄、几乎垂直伸向下方;突胸鸟类的髂骨后翼宽阔、水平侧向伸展并微微向背方拱起。反映了平胸类结构的原始性。
|
| 关 键 词： | 骨骼 愈合荐骨 腰带 平胸类 |
| 文章编号： | 0250-3263（2006）01-100-03 |
| 收稿时间： | 2005-06-17 |
| 修稿时间： | 2005-06-172005-11-25 |
Comparative Study on the Sacro-pelvic Region of Four Extant Species of Ratites |
| |
| ZHANG Zi-Hui,HOU Lian-Hai. Comparative Study on the Sacro-pelvic Region of Four Extant Species of Ratites[J]. Chinese Journal of Zoology, 2006, 41(1): 100-102 |
| |
| Authors: | ZHANG Zi-Hui HOU Lian-Hai |
| |
| Affiliation: | 1. College of Life Sciences, Capital Normal University, Being 100037 ; 2. Institute of Vertebrate Paleontology and Paleoanthropology , Chinese Academy of Sciences, Beijing 100044, China |
| |
| Abstract: | The skeletons of sacro-pelvic region are compared among four species of ratite: Cassowary(Casuarius casuarius),Emu(Dromaius novaehollandiae),Rhea(Rhea americana) and Ostrich(Struthio camelus).Cassowary is similar to Emu in possessing an identical structure of open-pelvis and a same-numbered synsacrum which are different from that of Rhea and Ostrich,the main bodies of ischia of rhea fuse together,the posterior feet of two pubes of Ostrich meet each other in the midline.The result showes that ratites are more primitive than carinates. |
| |
| Keywords: | Skeleton Synsacrum Pelvis Ratite |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《动物学杂志》浏览原始摘要信息 |
|
点击此处可从《动物学杂志》下载全文 |
|
