Two Eocene fossil fruits from the Changchang Basin of Hainan Island, China
Two Eocene fossil fruits from the Changchang Basin of Hainan Island, China
复制标题
中国海南岛长昌盆地两块始新世水果化石
DOI：
10.1016/j.revpalbo.2008.07.010
复制
发表时间：
2009-01-01
影响因子：
1.9
通讯作者：
Jin, Jianhua
中科院分区：
文献类型：
--
作者：
Jin, Jianhua
两种水果化石。一个属于核桃科（Juglandaceae）的古桂属（Palaeocarya sp.），另一个属于槭属（Acer cf.）A. miofranchetiiHu et Chaney，产于海南岛长昌盆地始新世含煤岩系中。这是我国热带地区首次发现的古桂属和槭属植物化石记录。这些化石为研究这两个属的植物地理历史提供了证据。由于其现存的近缘属多分布于北方温带或热带-亚热带山地，笔者认为始新世海南岛长昌盆地靠近山地，结果实的植物生长在中高海拔地区，气候相对凉爽，果实并非就地保存，而是搬运到化石地点。其它伴生植物化石特征和孢粉学资料也支持这一假说。(c)2008 Elsevier B. V.保留所有权利。
Two types of fossil fruit. one belonging to Palaeocarya sp. (Juglandaceae) and the other to Acer cf. A. miofranchetii Hu et Chaney (Aceraceae), are found in the Eocene coal-bearing series from the Changchang Basin of Hainan Island, China. This is the first fossil record of Palaeocarya and Acer in a tropical area of China. These fossils provide evidence for an investigation of the phytogeographic history of these two genera. Since their extant relative genera are distributed mostly in northern temperate or tropical-subtropical mountainous regions, I propose that the Changchang Basin of Hainan Island was close to a mountainous region in the Eocene; the plants bearing these fruits were growing at a mid-high altitude with a relatively cool climate, and the fruits were not preserved in situ but transported to the fossil site. The characters of other associated fossil plants and palynological data also support this hypothesis. (c) 2008 Elsevier B.V. All rights reserved.