Pollen and spores from Lower Cretaceous in Guyang Basin of Inner Mongolia, China and their palaeoclimatic and paleoecological significance
Pollen and spores from Lower Cretaceous in Guyang Basin of Inner Mongolia, China and their palaeoclimatic and paleoecological significance
复制标题
内蒙古固阳盆地下白垩统花粉和孢子及其古气候和古生态意义
DOI：
10.1111/iar.12207
复制
发表时间：
2017-06
期刊：
影响因子：
--
通讯作者：
Bainian Sun
中科院分区：
文献类型：
--
作者：
Peihong Jin;Jinwei Chen;Zixi Wang;Xiaohui Xu;Guolin Yang;Baoxia Du;Bainian Sun
对白垩纪气候和植被的研究是了解现在环境的基础。本研究的重点是下白垩统固阳组（内蒙古），它产生了独特的宏体化石和多样的孢粉组合，用于了解古生态。共鉴定出56个属，以蕨类植物和裸子植物的孢子和花粉为主。裸子植物花粉以松柏目杉科花粉为主，苏铁门和银杏门花粉也占很大比例。蕨类植物孢子主要由海金沙科和桫椤科的分类群组成。根据现代植物群落的地理分布和孢子形态生态群（SEG）模型，利用孢粉组合的定量分析，推断该地区存在一个以Podozamitales、Picea和Podocarpus为主的封闭针叶林，林下植被以蕨类植物为主。化石孢粉植物群表明内蒙古早白垩世为温暖湿润的亚热带气候。
Research on the climate and vegetation of the Cretaceous is fundamental to understanding the present environment. The present study focuses on the Lower Cretaceous Guyang Formation (Inner Mongolia), which yields unique macrofossils and diverse palynological assemblages that are used to understand the palaeoecology. In total, 56 genera are identified in the examined assemblage, which are dominated by spores and pollen of pteridophytes and gymnosperms. The gymnosperm pollen is dominated by Taxodiaceae, which belong to Coniferales, and a large proportion of pollen attributable to the Cycadophyta and Ginkgopsida. The pteridophyte spores are dominated by taxa attributable to the Lygodiaceae and Cyatheaceae. Quantitative analysis based on the geographical distribution of modern plant communities and the Sporomorph Ecogroup (SEG) model, the palynomorph associations are used to infer the presence of a closed coniferous forest dominated by Podozamitales, Picea and Podocarpus with understory vegetation comprising ferns prevailed. The fossil palyno flora indicates a warm and humid subtropical climate during Early Cretaceous of Inner Mongolia.
登录
查看更多内容
DOI：
--
发表时间：
2012
期刊：
Journal of stratigraphy
影响因子：
--
作者：
Deng Shenghui
通讯作者：
Deng Shenghui
DOI：
--
发表时间：
2008
期刊：
Tropical Geography
影响因子：
--
作者：
Wang Zhi-ying
通讯作者：
Wang Zhi-ying
影响因子：
1.9
作者：
J. K. Cittert
通讯作者：
J. K. Cittert
DOI：
--
发表时间：
2013
期刊：
Gansu Geology
影响因子：
--
作者：
Jin Pei-hon
通讯作者：
Jin Pei-hon
DOI：
10.31111/palaeobotany
发表时间：
2019-11
期刊：
Dictionary of Geotourism
影响因子：
--
作者：
通讯作者：
--