陕南张家沟剖面寒武纪早期微体化石Olivooides multisulcatus的新材料  

NEW MATERIALS OF EARLY CAMBRIAN MICROFOSSILS OLIVOOIDES MULTISULCATUS FROM ZHANGJIAGOU SECTION IN SOUTHERN SHAANXI

作　　者：张亚楠[1] 刘云焕[1,2,3] 秦嘉琛 张虎 邵铁全[1,2,3] 张婷[1] 王凤 魏荣浩 罗磊 张宏泽 尹春涛 

机构地区：[1]长安大学地球科学与资源学院,西安710054 [2]现代古生物学和地层学国家重点实验室中国科学院南京地质古生物研究所,南京210008 [3]陕西省早期生命与环境重点实验室,西安710069

出　　处：《古生物学报》2017年第4期425-432,共8页Acta Palaeontologica Sinica

基　　金：国家自然科学基金(No.41572009);中国科学院南京地质古生物研究所现代古生物学和地层学国家重点实验室(No.173121);大学生创新训练项目(201710710062;201710710063;201710710240);质量工程项目(0012-310600161000;0012-310627171808);长安大学第十届"挑战杯"大学生课外学术科技作品(C-P-B-2;C-P-B-6;C-P-B-8)联合资助

摘　　要：陕南西乡张家沟剖面寒武系下部统宽川铺组发现了大量特异埋藏化石,这些珍贵化石为三维磷酸盐化精美保存,在探索早期生命起源与演化方面意义重大,也是早寒武世前三叶虫时代生物地层对比的重要依据。本文主要对其中一类保存有软躯体的特异埋藏Olivooides multisulcatus Qian,1977进行描记,该类化石1977年曾在陕西宁强宽川铺生物群首次报道,与本文描记的化石类型相同,产地不同,因而具有地层对比意义。根据在西乡生物群发现的新材料,与Olivooides multisulcatus进行特征对比,对属征及种内变异特征进行了补充。Many fossils of Lagerst/itte is found from the Kuanchuanpu Formation of lower Cambrian in Zhangjiagou section, Xixiang, Shaanxi Province. The precious three-dimensionally phosphatized specimens have important research meaning for the origin and evolution of early life. And it is the basis for biostratigraphic comparison at the pre-trilobites-era of early Cambrian. This paper mainly describesLagerstfitte and soft-bodied Olivooides multisulcatus Qian, 1977. This type of fossil was first reported in Kuanchuanpu Biota in Ningqiang, Shaanxi in 1977, which is the same type as fossils described in this article but from different places, thus it has important research meaning to the stratigraphic correlation. According to new discoveries in Xixiang Biota, this paper compares and adds the characteristics and intraspecific variation of Olivooides multisulcatus Qian, 1977.

关 键 词：Olivooides multisulcatus 种内变异 特异埋藏 宽川铺组 梅树村期 陕西西乡 

分 类 号：Q915[天文地球—古生物学与地层学]