扬子区奥陶纪—志留纪横板珊瑚的发生、迁移与生物古地理  

ORIGIN, EMIGRATION AND PALEOGEOGRAPHY OF ORDOVICIAN-SILURIAN TABULATA IN YANGTZE REGION

作　　者：龚淑云 李志明 蔡善武 

机构地区：[1]地球科学学院 [2]博伦职业技术学校

出　　处：《地球科学（中国地质大学学报）》1997年第2期129-134,共6页Earth Science-Journal of China University of Geosciences

基　　金：高等学校博士学科点专项科研基金

摘　　要：扬子区奥陶系、志留系十分发育，内含丰富的横板珊瑚化石，是横板珊瑚起源中心之一．从横板珊瑚赋存特点入手，较系统地综合、概括了区内横板珊瑚的起源及迁移．奥陶纪—志留纪在扬子区起源的横板珊瑚科有Ａｇｅｔｏｌｉｔｉｄａｅ，Ｆｌｅｔｃｈｅｒｉｅｌｉｄａｅ，Ｏｃｕｌｉｐｏｒｉｄａｅ，Ｃｌｅｉｓｔｏｐｏｒｉｄａｅ，Ｇｒａｃｉｌｏｐｏｒｉｄａｅ，Ｓｉｎｏｐｏｒｉｄａｅ，Ｔｒｏｃｈｉｓｃｏｌｉｔｈｉｄａｅ，Ｔｈａｍｎｏｐｏｒｉｎａｅ（亚科），其迁徙方式有两种：一是从扬子区向亚洲东部、北美、欧洲等地迁移；Yangtze region, where aboundent Tabulata fossils are found in Ordovician-Silurian, is one of the original spot of Tabulata. A summary is made of the previous achievements and origin and emigration of these Tabulata are synthesized through the study of their distribution. There are Agetolitidae, Fletcheriellidae, Oculiporidae, Cleistoporidae, Graciloporidae, Sinoporidae, Trochiscolithidae, Thamnoporinae in Ordovician Silurian. The two emigration ways are: (1)from Yangtze region to Northeast of Asia, North America and Europe; and (2)from Yangtze region to other regions in the world.

关 键 词：奥陶纪 志留纪 横板珊瑚 生物古地理 地层 

分 类 号：Q914.642[天文地球—古生物学与地层学] P531[生物学—古生物学]