| 川北早志留世似包珊瑚属的两个新种 |
| |
| 引用本文： | 唐兰.川北早志留世似包珊瑚属的两个新种[J].成都理工大学学报(自然科学版),2006,33(1):24-29. |
| |
| 作者姓名： | 唐兰 |
| |
| 作者单位： | 中国地质大学地球科学与资源环境学院,北京,100083;广西大学资源与环境学院,南宁,530004 |
| |
| 基金项目： | 广西大学校科研和教改项目 |
| |
| 摘 要： | 在采自四川广元和朝天一带早志留世王家湾组的材料中发现具典型包珊瑚型隔壁,发育三级隔壁的单体珊瑚新类群.该类群边缘厚结带窄,一级隔壁长,几乎可达个体中心;二、三级隔壁短,隔壁由层状组织组成,横板完整,近平列状或密集成束状,无鳞板.基本特点与似包珊瑚属(Amplexoides Wang,1947)最为接近,因而暂将该类群归入包珊瑚属,共有两个种:Amplexoides trioseptatus sp. nov., Amplexoides modaoyaensis sp. nov..根据新资料补充了似包珊瑚属的部分属征,讨论了Amplexoides Wang的主要类群、构造特点及其演化,并系统描述了两个新种.
|
| 关 键 词： | Amplexoides Wang 早志留世 四川广元 川北 早志留世 珊瑚 Wang species Silurian Early 系统描述 演化 构造特点 主要类群 分属 补充 新资料 成束 横板 组成 层状组织 中心 边缘 |
| 文章编号： | 1671-9727（2006）01-0024-06 |
| 收稿时间： | 2005-05-08 |
| 修稿时间： | 2005年5月8日 |
Two Early Silurian species of Amplexoides Wang, 1947 from the north of Sichuan, China |
| |
| TANG Lan.Two Early Silurian species of Amplexoides Wang, 1947 from the north of Sichuan, China[J].Journal of Chengdu University of Technology: Sci & Technol Ed,2006,33(1):24-29. |
| |
| Authors: | TANG Lan |
| |
| Abstract: | Several specimens with incipient development tertiary septa and long, slender, amplexoid major septa are found in the materials collected from Wangjiawan Formation in Guangyuan and Chaotian in the north of Sichuan, China. The author refer these forms temporarily to Arnplexoldes Wang for the features of these specimens are closely similar to that of Arnplexoides Wang, with narrow peripheral stereozone, long, slender major septa and weakly developed minor septa; septa composing of lamellar tissue in the peripheral; tabulae flat or bunchiness, complete; no dissepiments. In this paper, two species are described, that is, Amplexoides trioseptatus sp. nov. , Arnplexoides rnodaoyaensis sp. nov.. The diagnosis of Amplexoides Wang is emended to include the new forms with tertiary septa. The affinity of the two new forms with the others similar faunus are discussed. |
| |
| Keywords: | Lower Silurian Amplexoides Wang Guangyuan Sichuan |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
