全球石炭纪和二叠纪植物地理分区

Phytogeographical Provinces of the Carboniferous and Permian in the World

早石炭世由于全球气候分带不明显 ,无显著植物分区现象 ,全球为一个一致性的植物区 ,即拟鳞木植物区 (Lepidodendropsisfloralprovince)。晚石炭世和二叠纪 ,全球存在 4个植物区 ,即华夏植物区(Cathaysianfloralprovince)、欧美植物区 (Euramericanfloralprovince)、安加拉植物区 (Angaranfloralprovince)和冈瓦纳植物区 (Gondwananfloralprovince)。华夏、欧美和安加拉植物区皆位于北半球的劳亚古陆(Laurasia) ,冈瓦纳植物区位于南半球的冈瓦纳古陆 (Gondwana)。本文通过对全球石炭纪 二叠纪植物地理分区的一些焦点问题的综合评述和分析 ,试图为古大陆再造研究提供古植物学方面的证据。

In the Early Carboniferous, the global climatic differentiations were not obviou s as today and all plants belonged to a uniform phytogeographical province, the Lepidodendropsis floral province. There were four phytogeographica l provinces in the world during the Late Carboniferous and Permian, e.g., the C athaysian floral province, Euramerican floral province, Angaran floral province and Gondwanan floral province. The Cathaysian, Euramerican, Angaran floral provi nces were situated in Laurasia of the Northern Hemisphere and the Gondawanan flo ral province was located in Gondwana of the Southern Hemisphere. This paper deal s with some major issues of Carboniferous and Permian phytogeographical province s in the world, attempting to provide palaeobotanical evidence for palaeocontin ental reconstruction.