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| 论鸟类飞行的起源 | |
| 引用本文： | 季强,袁崇喜,等.论鸟类飞行的起源[J].地质论评,2003,49(1):1-3. |
| 作者姓名： | 季强 袁崇喜 |
| 作者单位： | 1. 中国地质科学院地质研究所,北京,100037 2. 中国地质大学,北京,100083 3. 南京大学,210008 4. 辽宁省化石管理处,沈阳,110032 |
| 基金项目： | 国家自然科学基金(编号49625202),国土资源部“十五”专项计划“辽西中生代热河生物群及相关地层综合研究”项目资助成果。 |
| 摘 要： | 笔者简要介绍了有关鸟类飞行起源的两种假说,即“飞行的树栖起源”假说和“飞行的奔跑起源”假说,并根据近几年中国辽西发现的化石材料,对两种假说的立论依据和机理进行了分析和评述,初步认为两种可能性均存在,但因奔跑而飞地的机制更为普遍合理,“上树”是一种可能的条件,但既非必要条件也非充分条件。 |
| 关 键 词： | 鸟类飞行 起源 树栖起源说 奔跑起源说 化石 |
| 修稿时间： | 2002年8月21日 |
On the Origin of Birds' Flight |
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| JI Qiang,YUAN Chongxi,JI Xinxin,QIU Jun Institute of Geology,Chinese Academy of Geological Sciences,Beijing, China University of Geosciences,Beijing, Nanjing University,Nanjing, Management Office of Fossils,Shenyang.On the Origin of Birds' Flight[J].Geological Review,2003,49(1):1-3. | |
| Authors: | JI Qiang YUAN Chongxi JI Xinxin QIU Jun Institute of Geology Chinese Academy of Geological Sciences Beijing China University of Geosciences Beijing Nanjing University Nanjing Management Office of Fossils Shenyang |
| Abstract: | In this paper, two traditional hypotheses for the origin of birds' flight, namely the "arboreal" hypothesis and the "cursorial" hypothesis are intruduced. According to the findings of feathered dinosaurs and primitive avialian birds in western Liaoning, it is more likely that the ancestors of birds used a combination of taking off from the ground and taking advantage of accessible heights (such as hills, cliffs, large boulders, or fallen trees). It seems not necessary that the ancestors of birds must climb trees to assist flight. |
| Keywords: | origin of birds' flight "arboreal" hypothesis "cursorial" hypothesis |
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