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贵州桐梓红花园 Llanvirn期十字铺组产出保存良好的疑源类 ,可以和国内、外同期疑源类组合进行对比。十字铺组疑源类的丰富和多样性表明其沉积环境应为正常浅海相。Arbusculidi-um,Coryphidium和 Striatotheca等典型分子的出现 ,表明 Llanvirn期扬子地台属于环冈瓦纳疑源类生物地理区。
Guizhou Tongzi Red Garden Llanvirn period cross shop output well-preserved category of suspected sources, and domestic and foreign sources of similar categories during the comparison. The richness and diversity of the cross-pavilion group suggest that the sedimentary environment should be normal and shallow. The appearance of typical molecules such as Arbusculidi-um, Coryphidium and Striatotheca indicates that the Llanvirn Yangtze Yangtze platform belongs to the Huanghuanvana suspected source bio-geographical area.