泥盆纪是陆生植物多样性和植物类型显著增加的地质时期,陆生植物中除被子植物以外的所有类群在泥盆纪都已经出现。真叶植物,是广义蕨类、前裸子植物和裸子植物所组成的类群,在晚泥盆世已经非常丰富,并已经演化出了片状的叶子。然而,对于早期真蕨类植物,其羽片与大型叶之间的演化途径仍有诸多未解之谜。近期,研究者对产自我国江苏、安徽等地晚泥盆世五通组地层中的一种新型早期真蕨类植 Devonian is a geological period in which terrestrial plant diversity and plant types have significantly increased. All of the terrestrial plants except angiosperms have appeared in the Devonian. The true leaf plant, a group of broad-leaved ferns, pre-gymnosperms and gymnosperms, is already abundant in the Late Devonian and has evolved flaky leaves. However, there are many unsolved mysteries about the evolutionary pathways between plumage and large leaves in early true ferns. Recently, researchers from China in Jiangsu, Anhui and other places in the Late Devonian Wutong formation of a new type of early true ferns