SEQUOIA MAGUANENSIS, A NEW MIOCENE RELATIVE OF THE COAST REDWOOD, SEQUOIA SEMPERVIRENS, FROM CHINA: IMPLICATIONS FOR PALEOGEOGRAPHY AND PALEOCLIMATE
文献类型：期刊论文
| 作者 | Zhou, ZK ; Su, T
|
| 刊名 | AMERICAN JOURNAL OF BOTANY
 |
| 出版日期 | 2015 |
| 卷号 | 102期号:1页码:103-118 |
| 关键词 | NORTHERN-HEMISPHERE YUNNAN PROVINCE SOUTHWESTERN CHINA TIBETAN PLATEAU CENTRAL-EUROPE EASTERN ASIA TERTIARY FLORAS MACROFLORAS TAXODIACEAE |
| ISSN号 | 0002-9122 |
| 中文摘要 | Premise of the study: The paleogeographical origin of the relict North American Sequoia sempervirens is controversial. Fossil records indicate a Neogene origin for its foliage characteristics. Although several fossils from the Miocene sediments in eastern Asia have been considered to have close affinities with the modern S. sempervirens, they lack the typical features of a leafy twig bearing linear as well as scale leaves, and the fertile shoots terminating by a cone. The taxonomic status of these fossils has remained unclear. Methods: New better-preserved fossils from the upper Miocene of China indicate a new species of Sequoia. This finding not only confirms the former presence of this genus in eastern Asia, but it also confirms the affinity of this Asian form to the modern relict S. sempervirens. Key results: The principal foliage characteristics of S. sempervirens had already originated by the late Miocene. The eastern Asian records probably imply a Beringian biogeographic track of the ancestor of S. sempervirens in the early Neogene, at a time when the land bridge was not too cool for this thermophilic conifer to spread between Asia and North America. Conclusions: The climatic context of the new fossil Sequoia in Southeast Yunnan, based on other floristic elements of the fossil assemblage in which it is found, is presumed to be warm and humid. Following the uplift of the Qinghai-Tibet Plateau, this warm, humid climate was replaced by the present monsoonal climate with dry winter and spring. This change may have led to the disappearance of this hygrophilous conifer from eastern Asia. |
| 语种 | 英语 |
| 公开日期 | 2015-02-13 |
| 源URL | [http://ir.xtbg.org.cn/handle/353005/8356]  |
| 专题 | 西双版纳热带植物园_古生态研究组 |
| 通讯作者 | Zhou, ZK |
| 推荐引用方式 GB/T 7714 | Zhou, ZK,Su, T. SEQUOIA MAGUANENSIS, A NEW MIOCENE RELATIVE OF THE COAST REDWOOD, SEQUOIA SEMPERVIRENS, FROM CHINA: IMPLICATIONS FOR PALEOGEOGRAPHY AND PALEOCLIMATE[J]. AMERICAN JOURNAL OF BOTANY,2015,102(1):103-118. |
| APA | Zhou, ZK,&Su, T.(2015).SEQUOIA MAGUANENSIS, A NEW MIOCENE RELATIVE OF THE COAST REDWOOD, SEQUOIA SEMPERVIRENS, FROM CHINA: IMPLICATIONS FOR PALEOGEOGRAPHY AND PALEOCLIMATE.AMERICAN JOURNAL OF BOTANY,102(1),103-118. |
| MLA | Zhou, ZK,et al."SEQUOIA MAGUANENSIS, A NEW MIOCENE RELATIVE OF THE COAST REDWOOD, SEQUOIA SEMPERVIRENS, FROM CHINA: IMPLICATIONS FOR PALEOGEOGRAPHY AND PALEOCLIMATE".AMERICAN JOURNAL OF BOTANY 102.1(2015):103-118. |
入库方式： OAI收割
来源：西双版纳热带植物园
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。