Among these species Conchophyllum richthofeniiand Lepidodendron galeatum may be taken as leading forms of this lassembageon account of their full development in the Penchi Formation,from whichthe Early Cathaysia flora(Stage A)in Eastern Asia is derived.
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美
- Conchophyllum richthofenii Halle；Tingia sp.；由此認為華夏植物群從本溪期開(kāi)始；并將 Lepidodendron galeatum-Conchophyllum richofeni 作為早期華夏植物群 A 期的植物組合
