四川江油马角坝中、晚石炭世的(竹蜓)类

中、上石炭统在四川省境内分布范围较窄,除涪陵一带可能有中石炭统沉积外,只在西北部龙门山一带及松潘区(?)有零星出露。其中以江油马角坝附近发育比较完整,产化石较丰富。1961年,我所川北地层队在江油县马角坝附近张坝沟一个采石场测得中、上石炭统剖面一个,采集了(竹蜓)类及珊瑚类化石若干。剖面的层序自上而下为:

STROMATOPOROIDS FROM THE EARLY CARBONIFEROUS OF KWANGSI AND KUEICHOW

The specimens dealt with here were furnished by Prof.K.C.Yang and Miss W.S.Wu in 1961 to the writer for study.They were collected from the lower part of theShizixu formation of Luocheng and Huanjiang districts,Kwangsi province and from thelower part of the Kolaoho formation of Dushan and Duyun districts,southern Kuei-chow province.All the stromatoporoids obtained from Kwangsi are associated with coral:Cystophrentis sp.;and those from Kueichow are associated with brachiopods:Schucher-tella sp.,Athyris sp.,Camarotoechia sp.,a little bit below the horizon of Cystophrentis.