文献类型：期刊文献

英文题名：Phragmodictya jinshaensis sp nov., a hexactinellid dictyosponge from the Cambrian of Jinsha, south China

作者：Yang Xinglian Zhao Yuanlong Wu Weiyi Zheng Haolin Zhu Yajie

第一作者：Yang Xinglian

通信作者：Yang, XL[1]

机构：[1]Guizhou Univ, Coll Resource & Environm Engn, Guiyang 550003, Peoples R China;[2]Guizhou Inst Technol, Deans Off, Guiyang 550003, Peoples R China

第一机构：Guizhou Univ, Coll Resource & Environm Engn, Guiyang 550003, Peoples R China

通信机构：corresponding author), Guizhou Univ, Coll Resource & Environm Engn, Guiyang 550003, Peoples R China.

年份：2014

卷号：136

期号：1

起止页码：309-313

外文期刊名：GFF

收录：;Scopus(收录号：2-s2.0-84901237911);WOS:【SCI-EXPANDED(收录号:WOS:000335945500064)】；

基金：This research was supported by the National Natural Sciences Foundation of China (Nos. 41362002, 40902003, 41172005), National Basic Research Program of China (2013CB835002), Guizhou Natural Science Foundation (No. Gui J. 2011-2035) and State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS) (No. 113109). Special thanks are due to Zhao Jian, Liu Chao and Yang Zhongqun from Guizhou University for assistance in the field, Chen Zhouqing from Nanjing Institute of Geology and Palaeontology, and Chinese Academy of Sciences for photograph of fossils. Two anonymous reviewers provided critical comments, and Heyo Van Iten of Hanover College improved the English writing of the manuscript.

语种：英文

外文关键词：hexactinellid dictyosponge; Cambrian; Jinsha; south China

摘要：A new fossil species from Cambrian strata of Jinsha, south China, is interpreted as the earliest known hexactinellid dictyosponge. Phragmodictya jinshaensis sp. nov. occurs within the Niutitang Biota, the oldest known Burgess Shale-type biota. The new species is characterized by a convex, disc-shaped body consisting of reticular skeletal network surrounded by frill-bearing radial ridges. The discovery of this sponge is unexpected and provides additional evidence bearing on the nature of Precambrian sponges and the early evolution of hexactinellid dictyosponges. It also invites re-evaluation of the taxonomy of both Ediacaran and Phanerozoic sponges.