贵州松林下寒武统牛蹄塘生物群中的球状海绵化石

贵州松林下寒武统牛蹄塘生物群中的球状海绵化石

赵元龙1，杨荣军1，杨兴莲12，毛永琴1，

1. 贵州大学资环学院古生物及生物成矿研究所,贵阳550003; 2. 中国科学院南京地质古生物研究所,南京210008

收稿日期:2006-03-20 修回日期:2006-03-20 出版日期:2006-03-20 发布日期:2006-03-20

Globular Sponge Fossils from the Lower Cambrian in Songlin，Guizhou Province，China

ZHAO Yuan-long1, YANG Rong-jun1, YANG Xing-lian1 2, MAO Yong-qi1

1 College of Recource and Environment, Guizhou University, Guiyang 550003, China ; 2 Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China

Received:2006-03-20 Revised:2006-03-20 Online:2006-03-20 Published:2006-03-20

摘要/Abstract

摘要： 贵州遵义松林牛蹄塘生物群含球形海绵2个属，即麦粒海绵Triticispongia（Mehl et Reitner），1993和鬃毛状海绵Saetaspongia（Mehi et Reitner），1993。描述了产自松林中南村黑沙坡牛蹄塘组下部的牛蹄塘生物群中球状海绵化石的2个种，即Triticispongia diagonata（Mehl et Reitner），1993及Saetaspongia derma（Mehl et Reitiner），1993，丰富了这两属种的特征和分布资料。

Abstract: The Niutitang Biota from the lower Cambrian in Songlin Town，Zunyi County，Guizhou Province，southwestern China is dominated by sponges and represents early radiation of sponges in early Cambrian．Two common sponge genera were found in the lower horizon of the Niutitang Boita．They are Triticispongia(Mehl et Reinter)，1993 and Saetaspongia(Mehl et Reinter)．1993．Body wall of the former is composed of two kinds of stauractin of different sizes．which are mainly in diagonal arrangement．The body wal1 of the latter is composed of dense accumu1ations of hairlike diactines．Spicules in these two genera do not protrude out of body wal1．Sponge body of both genera hardly exceeds 10 cm in size．They belong to Hexactinellida．Both genera were firstly found in black shale of the lower part of the Niutitang Formation，Sancha Town，Dayong，Hunan Province，and then in the Niutitang Form ation in Zunyi，Guizhou Province．

赵元龙，杨荣军，杨兴莲，毛永琴，. 贵州松林下寒武统牛蹄塘生物群中的球状海绵化石[J]. J4.

ZHAO Yuan-long1, YANG Rong-jun1, YANG Xing-lian1 2, MAO Yong-qi1. Globular Sponge Fossils from the Lower Cambrian in Songlin，Guizhou Province，China[J]. J4.