中国晚古生代栉羊齿属Pecopteris的多样性及地质地理分布  

The diversity and geological distribution of Pecopteris in the Upper Paleozoic in China

作　　者：周煜 郭芸 杨海林[1] 浮耀坤 ZHOU Yu;GUO Yun;YANG Hailin;FU Yaokun(Faculty of Land Resourse Engineering,Kunming University of Scienceand Technology,Kunming 650093,Yunnan,China;Institute of Deep Time Terrestrial Ecology,Yunnan University,Kunming 650091,Yunnan,China)

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650093 [2]云南大学深时陆地生态研究所,云南昆明650091

出　　处：《矿产与地质》2017年第6期1169-1174,共6页Mineral Resources and Geology

摘　　要：栉羊齿属Pecopteris植物普遍被认为是真蕨纲、观音坐莲目、莲座蕨科植物,中国晚古生代除冈瓦纳植物区之外,华夏植物区、安加拉植物区以及欧美植物区广泛分布着该属植物。中国晚古生代栉羊齿属Pecopteris植物共计49种,其多样性及时空分布在我国南、北方存在明显区别:华北地区,该属在早石炭世出现,多样性及分布范围在晚石炭世进一步增加,并在早二叠世分布范围达到顶峰,中二叠世多样性达到最高而产地数量降低,晚二叠世多样性及产地数量急剧衰退;华南地区,早二叠世开始出现该属,经过中二叠世发展多样性和产地数量在晚二叠世达到顶峰。且栉羊齿属在晚古生代时期的地质地理分布与古气候、古环境及古构造存在一定的耦合关系。Pecopteris widely considered to belong to Filicinae,Marattiales and Angiopteridaceae.In the Upper Paleozoic in China?besides the Gondwanan floral province,Pecopteris also widely distributed in the Cathaysian floral province,Angaran floral province and Euramerican floral province.In China in the Upper Paleozoic,there is a total of 49 species of Pecop teris.Its diversity and tempo-spatial distribution are obviously different in the south and north of China.In the north,it firstly appears in the Lower Carboniferous epoch with the diversity and tempo-spatial distribution increasing in the Upper Carboniferous epoch and the distribution reaches the peak in the Lower Permian epoch but the number of localities decreases.The diversity and number of localities experienced a sharp decline in the Upper Permian epoch.In the south,Pecopteris firstly appears in the Lower Permian epoch,with development in the Middle Permian epoch,the diversity and number of localities reach the peak in the Upper Permian epoch.This paper argues that the diversity and tempo-spatial distribution of Pecopteris is closely related to the palaeoenvironment and paleostructure.

关 键 词：晚古生代 栉羊齿属 多样性 时空分布 中国 

分 类 号：Q914.5[天文地球—古生物学与地层学] P531[生物学—古生物学]