龙门山北段志留纪牙形石生物群特征

来源期刊：中南大学学报(自然科学版)1993年第5期

论文作者：刘殿升 杨季楷 傅英祺

文章页码：573 - 578

关键词：龙门山; 志留纪; 牙形石

Key words：longmen mountain; silurian; conodonts

摘    要：作者通过对龙门山北段志留纪牙形石的研究,首次建立了本区的牙形石带四个,亚带六个,自下而上为Spathognathodus obesus带,包括上、下两个亚带A和B;Spathognathodus parahassi—P.guizhouensis组合带;未命名带I,包括上、下两个亚带;Spathognathodus celloni带,包括Aulacognathus bashanensis亚带和Ozarkodina adiutricis亚带。并与国内外有关地区的牙形石带进行了对比。

Abstract: Based on the study about silurian conodonts in the northern section of Longmen Mountain,4 conodont zones,including 6 subzones,were built in this area for the first time.They are in ascending order:Spathognathodus obesus zone,containing lower and upper subzones;Spathognathodus parahassi—S.guizhouensis assemblage zone,nonnamed conodont zone I,containing lower and upper subzones;Spathognathodus celloni zone,containing Aulacognathus bashanensis subzone and Ozarkodina adiutricis subzone.This paper also presents a discussion about the correlation of conodont zones between China and other countries.