Fossil endocarps of Aralia (Araliaceae) from the upper Pliocene of Yunnan in southwest China, and their biogeographical implications
文献类型：期刊论文
| 作者 | Zhe-Kun Zhou
|
| 刊名 | Review of Palaeobotany and Palynology
 |
| 出版日期 | 2015 |
| 卷号 | 223期号:x页码:94-103 |
| 关键词 | Aralia Endocarp Late Pliocene Sanying Formation Southwest China Eastern Asia |
| 中文摘要 | Aralia stratosa H. Zhu, Y.J. Huang et Z.K. Zhou sp. nov. is described based on fossil endocarps from the upper Pliocene of northwest Yunnan in southwest China. The endocarps are characterized by a semicircular to elliptic outline in the lateral view, an apical beak-like structure bending towards the ventral side, and a transversely wrinkled surface, collectively indicating taxonomical inclusion in the genus Aralia (Araliaceae). The new fossil taxon is compared with nine extant species of Aralia based on endocarp morphology and anatomy, showing the carpological resemblance to A. echinocaulis. Aralia stratosa sp. nov. represents the first confirmed fossil record from lower latitudes in the Northern Hemisphere. This implies a southerly biogeographical range for this genus than was previously interpreted. The fossil record of Aralia suggests a Cretaceous origin in North America and an Eocene dispersal to eastern Asia, likely via the Bering land bridge, followed by Miocene establishment in Europe. The genus likely began to inhabit lower latitudes in eastern Asia no later than the late Pliocene, which is in line with results from molecular analyses. All these may suggest a southward distributional change probably associated with the global cooling and northern aridification. |
| 公开日期 | 2015-12-03 |
| 源URL | [http://ir.xtbg.org.cn/handle/353005/9370]  |
| 专题 | 西双版纳热带植物园_古生态研究组 |
| 通讯作者 | Zhe-Kun Zhou |
| 推荐引用方式 GB/T 7714 | Zhe-Kun Zhou. Fossil endocarps of Aralia (Araliaceae) from the upper Pliocene of Yunnan in southwest China, and their biogeographical implications[J]. Review of Palaeobotany and Palynology,2015,223(x):94-103. |
| APA | Zhe-Kun Zhou.(2015).Fossil endocarps of Aralia (Araliaceae) from the upper Pliocene of Yunnan in southwest China, and their biogeographical implications.Review of Palaeobotany and Palynology,223(x),94-103. |
| MLA | Zhe-Kun Zhou."Fossil endocarps of Aralia (Araliaceae) from the upper Pliocene of Yunnan in southwest China, and their biogeographical implications".Review of Palaeobotany and Palynology 223.x(2015):94-103. |
入库方式： OAI收割
来源：西双版纳热带植物园
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