罗平生物群中双壳类化石新材料及其意义  

NEW INFORMATION OF FOSSIL BIVALVES FROM THE LUOPING BIOTA

作　　者：谢韬[1] 张启跃[1] 胡世学[1] 周长勇[1] 黄金元[1] 文芠[1] XIE Tao;ZHANG Qi-yue;HU Shi-xue;ZHOU Chang-yong;HUANG Jin-yuan;WEN Wen(Chengdu Center,China Geological Survey,Chengdu 610081)

机构地区：[1]中国地质调查局成都地质调查中心

出　　处：《地层学杂志》2019年第4期411-416,共6页Journal of Stratigraphy

基　　金：中国地质调查局项目《贵州1∶5万兴义县、郑屯、安龙县幅区域地质矿产调查》(编号:12120114068101)、《南盘江成矿区贞丰和富宁地区地质矿产调查》(编号:DD20160020);国家自然科学基金项目《应用同步加速器X射线层析显微技术重建云南罗平中三叠世牙形石多分子器官》(批准号:41502013)共同资助

摘　　要：本文首次报道和描述了来自罗平生物群中的双壳类化石,包括6个属,属于Costatoriagoldfussi mansuyi组合带,为台间盆地相生物组合,时代为中三叠世安尼期。二叠纪末生物大灭绝之后双壳类的演化分为残存期一复苏期一辐射期,本文所描述的双壳类化石处于复苏与辐射的关键时期,其报道为研究双壳类演化提供了新材料。New materials of Anisian bivalves from the Luoping biota of Yunnan Province are figured and described for the first time,including 6 genera.They belong to the assemblage of Costatoria goldfussi mansuyi,and come from the intrashelf basin facies.The age is Anisian in the Middle Triassic.The evolution of bivalves after the end Permian mass extinction is divided into three stages:survival,recovery and radiation stages.The bivalve fossils from the Luoping biota represent the critical period of recovery and radiation,providing new information on bivalve evolution after the end Permian mass extinction.

关 键 词：双壳类 罗平生物群 安尼期 生物复苏 生物辐射 

分 类 号：P534.51[天文地球—古生物学与地层学]