A Study of Ginkgo Leaves from the Middle Jurassic of Inner Mongolia, China1
A Study of Ginkgo Leaves from the Middle Jurassic of Inner Mongolia, China1
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DOI：
10.1086/590474
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发表时间：
2008-10
影响因子：
2.3
通讯作者：
Chunlin Sun;D. Dilcher;Hongshan Wang;G. Sun;Y. Ge
中科院分区：
文献类型：
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作者：
Chunlin Sun;D. Dilcher;Hongshan Wang;G. Sun;Y. Ge
在中生代，银杏叶是多样化和广泛的，特别是在北方。本文介绍了采自内蒙古石拐含煤盆地中侏罗统赵沟组的三种银杏叶类型。这些是第一次描述的基础上，他们的叶形态和保存完好的角质层特征。描述了一个新种Ginkgo shiguaiensis，并确认了银杏属Ginkgo longifolius，第三个叶型被命名为Ginkgo sp.这些叶型在内蒙古中侏罗世的出现，显著地扩展了银杏在中国的地层和地理分布。相关植物、银杏叶的表皮特征和含植物地层的沉积学表明，这些植物生长在温暖潮湿的气候中。
During the Mesozoic era, Ginkgo leaves are diverse and widespread, especially in the Northern Hemisphere. Here we present three Ginkgo leaf types collected from the Middle Jurassic Zhaogou Formation of Shiguai coal‐bearing basin in Inner Mongolia, China. These are described for the first time on the basis of their leaf morphology and well‐preserved cuticular characters. One new species, Ginkgo shiguaiensis, is described, and Ginkgo longifolius is recognized, while a third leaf type is designated as Ginkgo sp. The occurrence of these leaf types in the Middle Jurassic of Inner Mongolia significantly extends the stratigraphic and geographic distribution of Ginkgo in China. The associated plants, cuticular characters of the Ginkgo leaves, and the sedimentology of the plant‐bearing strata suggest that these plants grew in a warm‐temperate and moist climate.