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Occurrences of Early Cretaceous fossil woods in China: Implications for paleoclimates

RainRoyal 添加于 2013/7/16 13:15:29  725次阅读 | 0次推荐 | 0个评论

The Chinese Early Cretaceous flora was divided phytogeographically into the Northern Floristic Province and the Southern Floristic Province. The “temperate–wet vegetations” and “tropic–subtropic xeric vegetations” were proposed to represent the two different vegetation types. About 52 species of fossil woods belonging to Cycadophytes (2 species), Ginkgoales (1 species) and coniferales (49 species) have been discovered in the two floristic provinces, mainly from the Northeast China. The biodiversity and anatomical characteristics, especially the growth ring feature analysis of fossil woods indicated climatic conditions with seasonal variation in both the Northern and Southern Floristic Provinces during the Early Cretaceous. It suggests that a tropic to sub-tropic semi-arid climate might dominate over southern China, while warm or temperate, and wet climate prevailed in northern China during the Early Cretaceous. The wood evidence is in accordance with that of the leaf fossils collected from the corresponding formations of the Early Cretaceous in China.

作 者:Xiao-Ju Yanga, Yong-Dong Wang, Wu Zhang
期刊名称: 《 Palaeogeography, Palaeoclimatology, Palaeoecology》
期卷页: 第卷 第期 页
学科领域:地球科学 » 地质学 » 古生物学和古生态学
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原文链接:http://www.sciencedirect.com/science/article/pii/S0031018213002526
DOI: 10.1016/j.palaeo.2013.05.019
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