Members of the Chengjiang Biota from the Lower Cambrian Niutitang Formation, Zunyi County, Guizhou Province, China
Members of the Chengjiang Biota from the Lower Cambrian Niutitang Formation, Zunyi County, Guizhou Province, China
复制标题
DOI：
--
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
Gao Hui
中科院分区：
文献类型：
--
作者：
Gao Hui
澄江生物群被称为寒武纪大爆发的窗口。该生物群在云南省东部的分布一直较为有限。最近发现的有：Narania、Archotuba conoidaris、Isoxys、Persptcaris、Lingulepis、Tsunyi disus、Scenella、Medusiform化石、Leptomtus、Rhabdopleura化石、Hyolithids、Zunyi Phyton perelegans Yang et赵，1999、Yuknersia sp.，Longenema Ding，1996，在贵州省遵义县下寒武统牛堤塘组中发现了变异球形藻，中国。其中，纳罗尼亚属(Narania)、锥形螺属(Archotuba Conoidalis)、等轴属(Isoxys)、裸子藻属(Yuknersia sp.)、Medusiform化石和Leptomtus是澄江生物群的成员。牛体塘组上部的生物群被称为“遵义生物群”。澄江型生物群在云南省以外地区首次发现。此外，在“遵义生物群”产状层位以下40m处发现了“松林生物群”，它来自牛铁塘组底部，含有丰富的海绵化石、节肢动物和藻类化石。在遵义生物群上，早寒武世太古生物动物群出现在明新寺组。因此，该生物群的发现对研究贵州早寒武世生物群的演化具有重要意义。同时，对澄江生物群的古生态研究也具有重要意义。
The Chengjiang Biota was called a window of the "Cambrian explosion". The occurrences of the biota are all along restricted in eastern Yunnan Province. Recently, Naronia, Archotuba conoidalis, Isoxys, Persptcaris, Lingulepis, Tsunyidiscus, Scenella, medusiform fossil, Leptomitus, Rhabdopleura fossil, Hyolithids, Zunyiphyton perelegans Yang et Zhao, 1999, Yuknessia sp. , Longenema Ding, 1996, Sphaerocangregus variabilis were discovered in the Lower Cambrian Niutitang Formation of Zunyi County, Guizhou Province, China. Among them, Naronia, Archotuba conoidalis, Isoxys, Yuknessia sp. , medusiform fossil and Leptomitus are members of the Chengjiang Biota. The Biota from the upper part of the Niutitang Formation is called the " Zunyi Biota". It is the first time for Chengjiang-type Biota to be found outside Yunnan Province. Additionally, the "Songlin Biota" from the base of the Niutitang Formation, containing abundant sponge fossils, Arthropoda and algal fossils, has been found at 40 m beneath the occurring horizon of the "Zunyi Biota". Over the "Zunyi Biota", Early Cambrian Archaeocyathan fauna occur in the Mingxinsi Formation. Therefore, the discovery of the biota is of great importance to the study of evolution of Early Cambrian biota in Guizhou Province. Simultaneously, it is also important for the palaeoecological study of the Chengjiang Biota.