扬子区志留纪十字珊瑚类属种的修订及其新资料  

REVISIONS OF GENERA AND SPECIES OF SILURIAN STAURIID CORALS FROM YANGTZE REGION

作　　者：唐兰[1] 何心一[2] 陈建强[2] 

机构地区：[1]广西大学资源与环境学院,南宁530004 [2]中国地质大学,北京100083

出　　处：《古生物学报》2008年第4期427-443,共17页Acta Palaeontologica Sinica

基　　金：生物地质与环境地质教育部重点实验室开放基金(项目批准号:BGEG0804);广西大学博士基金资助

摘　　要：以萼内分裂繁殖为主的十字珊瑚类在我国扬子区广泛分布于志留系兰多维列统的香树园组、雷家屯组、石牛栏组及宁强组等,层位稳定,演化迅速,具有重要的地层意义。文章对我国扬子区发表的志留纪十字珊瑚类属种进行系统整理和修订,十字珊瑚亚科(Stauriinae)分为7属:Ceriaster Lindstrm,1883,Eostauria He et Li,1983,Massparaceriaster Tang gen.nov.,Paraceriaster Y.X.He,1980,Stauria Edwardset Haime,1850,Cystostauria He et Li,1983和Parastauria He et Li,1974,同时讨论7属的属征,并对一些种群进行归并。此外,描述采自扬子区志留系兰多维列统的十字珊瑚6属8种,其中1新属,3个新种,它们是:Massparaceriaster Tanggen.nov.,Eostauriastauriata Tang sp.nov.,Paraceriastermicropora Tang sp.nov.和Paraceriaster baishaensis Tang sp.nov.。The Llandovery rugose stauriid corals with axial increase are developed rapidly and widespread in the Yangtze region, especially in the Xiangshuyuan, Leijiatun, Shiniulan and the Ningqiang formations and with important stratigraphic significance. All genera and species of stauriid corals that have been published in the Yangtze Region are systematically sorted out by authers, and some genera and species are revised. The present paper proposed that Subfamily Stauriinae ineludes 7 genera, i. e. Ceriaster Lindstrem, 1883, Eostauria He et Li 1983, Massparaceriaster Tang gen. nov. ,ParaceriasterY. X. He, 1980,Stauria Ed- wards et Haime, 1850, Cystostauria He et Li, 1983 and Parastauria He et Li, 1974. The diagnoses of these genera diagnosis are briefly discussed. Altogether 8 species assigned to 6 genera are described in this paper, including 1 new genus, 3 new species, namely. Massparaceriaster Tang gen. nov. ,Eostauria stauriata Tang sp. nov. , Paraceriaster micropora Tang sp. nov. and Paracerister baishaensis Tang sp. nov..

关 键 词：十字珊瑚类 四射珊瑚 志留纪 扬子区 

分 类 号：Q915[天文地球—古生物学与地层学]