Microtubular metazoan fossils with multi-branches in Weng'an Biota  

作　　者：LIU Pengju YIN Chongyu TANG Feng 

机构地区：[1]Institute of Geology, Chinese Academy of Geological Sciences, Beijing100037, China

出　　处：《Chinese Science Bulletin》2006年第5期630-632,共3页

基　　金：supported by the National Natural Science Foundation of China(Grant No.440272015);the China Geology Survey(Grant No.1212010511607);0pen Laboratory of Chinese Academy of Geological Sciences(Grant No.KL05-4).

摘　　要：Microtubular metazoan fossils with multi- branches are found at least 4 times from the Sinian (Ediacarian) Doushantuo Formation at Weng’an, Guizhou, China. Their living mode should be the benthonic colony with higher ability of asexual re- production. The inner of the tube with cross-walls and chamber shows that these fossils are basal or stem- group cnidarians, similar to extinct tabulates. The multi-branching microtubular fossils are real meta- zoan found from Weng’an biota, which is very im- portant for studying the origin and evolvement of metazoan.Microtubular metazoan fossils with multibranches are found at least 4 times from the Sinian （Ediacarian） Doushantuo Formation at Weng＇an, Guizhou, China. Their living mode should be the benthonic colony with higher ability of asexual reproduction. The inner of the tube with cross-walls and chamber shows that these fossils are basal or stemgroup cnidarians, similar to extinct tabulates. The multi-branching microtubular fossils are real metazoan found from Weng＇an biota, which is very important for studying the origin and evolvement of metazoan.

关 键 词：多细胞动物 微管类化石 贵州 生物进化 

分 类 号：Q915.2[天文地球—古生物学与地层学]