异珊瑚目的地史分布与化石组合

摘要

The earliest Heterocorals have been found in Lower Devonian atWenshan district，Yunnan of China.The Heterocorals got their climax of evolution during Early Carboniferous，and extincted after Early Permian.There are 4 fossil assemblages divided.The authors discuss the characteristic of every fossil assemblage，the patterns of distribution and immigration，and the ecologic environments.The fossil assemblage is as follow：Tetraphyllia Assemblage of Early Devonian；Oligophylloides-Heterophyllia Assemblage of Late Devonian；Pentaphyllia-Hexaphyllia-Radiciphyllia Assemblage of Early Carboniferous；Dichophyllia-Heterophyllia-Hexaphylloides Assemblage of Early Permian.The authors point out that the South China Plate may be the deriving center of Heterocorallia and the Heterocoral is one of tropic-subtropic to warm temperate zone biotic community.%异珊瑚化石始发现于早泥盆世，早石炭世为鼎盛时期，至早二叠世末全部绝灭。本研究将异珊瑚划分为4个化石组合，并对异珊瑚的起源、分布及迁移规律及生态环境等进行了讨论。化石组合由老至新分别为：早泥盆世Tetraphyllia组合；晚泥盆世Oligophylloides-Heterophyllia组合；早石炭世Pentaphyllia-Hexaphyllia-Radiciphyllia组合；早二叠世Dichophyllia-Heterophyllia-Hexaphylloides组合。并指出异珊瑚属于热带—亚热带至暖温带的生物类群，起源中心可能为中国华南板块。