似犬齿珊瑚属Caninophyllum Lewis,1929(四射珊瑚)两个种个体系统发育特征研究  

Two Species Ontogeny Characteristics of Caninophyllum Lewis,1929(Rugose Corals)

作　　者：方少伯 王训练[1] 周洪瑞[1] 岑武轩 FANG Shaobo;WANG Xunlian;ZHOU Hongrui;CEN Wuxuan(School of the Earth Sciences and Resources,China University of Geosciences(Beijing),Beijing 100083,China)

机构地区：[1]中国地质大学(北京)地球科学与资源学院,北京100083

出　　处：《西北地质》2024年第2期24-33,共10页Northwestern Geology

基　　金：中国地质调查局项目(DD20189612);国家自然科学基金项目(42172037,41702023)联合资助。

摘　　要：四射珊瑚似犬齿珊瑚属Caninophyllum Lewis,1929广泛发育于欧洲、亚洲和北美地区石炭纪至早二叠世,以成年期主隔壁缩短且不发育轴部构造为特征,由于该属一些种的主、对隔壁特征及轴部构造在成年期特征与原始定义不符,导致关于Caninophyllum Lewis,1929定义存在分歧。根据准噶尔盆地东北缘上石炭统石钱滩组发现的保存较完整的Caninophyllum shuangjingziense Zeng,1983与Caninophyllum yui Wang,1989个体系统发育特征,并结合模式种及原始描述,认为Caninophyllum在早期个体发育阶段,原生隔壁(轴连隔壁)便分离为主隔壁与对隔壁,成年期主隔壁整体呈现缩短趋势,对隔壁与对部其余一级隔壁等长,轴部构造不发育。Caninophyllum Lewis,1929 was widely developed in Europe,Asia and North America from the Carboniferous to the Early Permian,characterized by shortened cardinal septum and no axial structure after early neanic stage.There are disputes about the definition of Caninophyllum Lewis,1929 due to the main and cardinal septum characteristics and axial structure of some species of this genus in mature growth stages are inconsistent with the original definition.According to ontogenetic characteristics of the well-preserved individuals of Caninophyllum shuangjingziense Zeng,1983 and Caninophyllum yui Wang,1989 collected from Shiqiantan Formation of Upper Carboniferous,based on the type species and original description,it is believed that the axial septum of Caninophyllum Lewis,1929 in the early stages was separated to the cardinal and the counter septa.Axial septum only present during early neanic growth stage,moreover,in mature growth stage the cardinal septum is shortened,the length of counter septum is equal to average counter septa.

关 键 词：Caninophyllum 四射珊瑚 上石炭统 准噶尔盆地 

分 类 号：P52[天文地球—古生物学与地层学]