Therefore, the Cathaysia, Euramerica, Angara and Gondwana floras were derived from an identical Lepidodendropsis flora of the Early Carboniferous, but they were developed in different environments respectively.

• 因此，华夏植物群、欧美植物群、安加拉植物群和冈瓦纳植物群衍生于早石炭世全球一致性拟鳞木植物群，但它们各自发展在不同的环境中。