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山西太原西山煤田斜道沟太原组７号煤层古泥炭沼泽植物群落由菌藻类、石松类、节蕨类、真蕨类、种子蕨类以及科达类等植物所组成。科达植物在群落中占据优势地位，鳞木和辉木为亚优势类群。科达植物的２个种Ｓｈａｎｘｉｏｘｙｌｏｎｓｉｎｅｎｓｅ和Ｐｅｎｎｓｙｌｖａｎｉｏｘｙｌｏｎｔｉａｎｉｉ很矮小，适合于在覆水较深、营养较贫乏的环境中生活。另１种科达植物Ｓｈａｎｘｉｏｘｙｌｏｎｔａｉｙｕａｎｅｎｓｅ可能生活于泥炭沼泽中地势较高的地方或泥炭沼泽的边缘。鳞木、封印木和芦木的生态解剖学特征表明它们都适合于在泥炭沼泽中生活．树蕨辉木可能生活于泥炭沼泽的边缘．７号煤层古泥炭沼泽植物群落经历了由早期的鳞木、辉木和科达Ｓｈａｎｘｉｏｘｙｌｏｎｔａｉｙｕａｎｅｎｓｅ占优势的植物群落，到中期的芦木类较占优势的植物群落以及晚期的矮小科达Ｓｈａｎｘｉｏｘｙｌｏｎｓｉｎｅｎｓｅ和Ｐｅｎｎｓｙｌｖａ－ｎｉｏｘｙｌｏｎｔｉａｎｉｉ占优势的植物群落这样１个演替过程，反映了泥炭沼泽覆水程度逐渐增强、营养状况渐趋贫乏的演化趋势。
Shanxi Taiyuan Xishan Coalfield Chaigaogou Taiyuan Formation on the 7th Coal Paleomast Marsh Botanical Community by the bacteria and algae, stone pine, section of ferns, true ferns, seed ferns and Kodak and other plants. Keda plants occupy a dominant position in the community, and Larch and Fai wood are subdominant groups. Two species of Kodak plants, Shanxioxylonsinense and Pennsylvanioxylontianii, are short and are suitable for living in deep, nutrient-poor environments. Another Kodak plant, Shanxioxylontaiyuanense, may live on the edge of peat bogs with higher ground or peat bogs. The eco-anatomical features of lignin, sealwood and reed wood indicate that they are all suitable for living in peat swamps. Tree fern Hui Mu may live on the edge of the peat swamp. The ancient peat bog plant community of Seam No. 7 experienced the dominant plant communities dominated by early scales of lignocellulosic, Foeniculum vulgare and Kodak Shanxioxylontaiyuanense, the more dominant species of reed in the medium term, and the lately shorter Cox Shanxioxylonsinense and Pennsylva- The succession process of the dominated plant community in nioxylontianii reflects the gradual increase of peat swamp water coverage and the evolution of nutrient status.