晚石炭世及早二叠世部分常见复体四射珊瑚骨骼微细构造及其分类意义

MICROSKELETAL STRUCTURES OF SOME COMPOUND RUGOSE CORALS AND THEIR SYSTEMATIC SIGNIFICANCE IN THE LATE CARBONIFEROUS AND EARLY PERMIAN

本文通过对晚石炭世及早二叠世几种常见复体四射珊瑚的骨骼,尤其是隔壁的电镜研究、划分出了4种重要的隔壁微细构造类型,并指出了这些微细构造类型的地层分布规律及其在分类中的意义。

By using SEM and optical telescope , the microskeletal structures of some compound rugose corals in the Late Carboniferous and Early Permian (including Protoivanovia , Anthcria , Nephelophyllum , Anfractophyllum , Szechuanophyllum , Wentzellophyllum , Parawentzelella ) from South Guizhou and Central Hunan are studied , and four types of septa are divided : non-trabeculae septa ,trabeculae septa (including typical trabeculae and unclear trabeculae ), the septa with a trabecula in its axis , and normal fibrous septa . Then the stratigraphic distribution and systematic significance of the microskeletal structures are discussed on the basis of the SME and optical telescope analysis .