摘要
本文详细研究了苏皖地区早二叠世孤峰组上部的放射虫Ruzhencevispongus uralicus化石。根据其形态的变化,认为该种可以分成3种形态型,即m. triradiatus. m. subtriangulus和m. uralicus。文章对这3种形态型进行了描述,同时还讨论了它们的相互关系,演化以及Ruzhencevispongus uralicus的生物地层学意义。
The Ruzhencevispongus uralicus(radiolarian) in the upper part of Gufeng Formation(Lower Permian) from Jiangsu and Anhui. Provinces is reported in detail. Based on the morphological change, the writer confirms that Ruzhencevispongus uralicus consists of three morphotypes, namely m. triradiatus(nov.), m. subtriangulus(nov.) and m. ura. licus. The three morphotypes are carefully deseribed(P1. I. Figs. 1—16). There are two terms to be suggested. The relationship and evolution among the three morphotypes and biostratigraphical significance of the Ruzhencevispongus uralicus are discussed.
基金
同济大学创业基金资助项目
关键词
海绵虫
孤峰组
早二叠世
地层
Ruzhencevispongus uralicus,morphotypes,Gufeng Formation,Jiangsu and Anhui Provinces.
