In the Early Carboniferous, the global climatic differentiations were not obvious as today and all plants belonged to a uniform phytogeographical province, the Lepidodendropsis floral province.

• 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(Lepidodendropsis floral province)。