贵州关岭生物群海百合Traumatocrinus的再研究

    Restudy of the crinoids Traumatocrinus of the Guanling biota,Guizhou

    • 摘要: 在前人的研究基础上,通过对大量新发掘的贵州关岭地区晚三叠世海百合化石标本的再研究,肯定了Trauma-tocrinus的有效性。根据目前的材料,认为该属只有1个有效种,即Traumatocrinus hsui;而根据化石的埋藏学特征,认为幼年体Traumatocrinus hsui营假浮游生活,成年体是否能够适应底栖生活环境尚需进一步证实。

       

      Abstract: Late Triassic crinoid fossils collected recently from Guanling County,Guizhou,were restudied based on previous studies.The authors affirmed the validity of Traumatocrinus and considered according to the available data that only one species,Traumatocrinus hsui ,is valid.According to the taphonomic fea-tures of the fossils,the authors believe that the juvenile Traumatocrinus hsui lived a pseudoplanktonic life.Whether the adults could adapt themselves to the benthic environment remains to be further proved.

       

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