四川华蓥山栖霞组腕足动物组合

Brachiopod assemblages from the Chihsia Formation of Huayingshan, Sichuan .

四川华蓥山二叠系露头良好,栖霞组在华蓥山中段出露比较完整,分为下部含煤线的碎屑岩梁山段和中部、上部的灰岩段。梁山段平行不整合于中志留统罗惹坪组之上,厚度为7.8m。梁山段的下部为夹粉砂岩薄层的浅灰色铝土质泥岩;

This paper deals with the features and the characters of the brachiopod fauna from the Chihsia Formation of Huayinshan, Sichuan.A correlation of this brachiopod fauna with those from the other areas is made.Based on the brachiopod succession, the following two brachiopod assemblage zones are established in descending order: 2.Linoproductus lineatus-Capillifera chilianshanensis Zone and 1.Tyloplecta richthofeni-Dictyoclostus cf.tartaricus Zone.The brachiopods under study were collected from the Chihsia Limestone at Liziya.They consist of 32 species in 24 genera.Among them, 9 species are new.