时代T2命名广西区域地质测量大队,1974年命名。岩性以砂岩为主的砂泥岩互层。特征含菊石:Leiophyllites cf. confucii,Balatonites sp.,B. balatonicus,B. multisulcatus,Danubites kansa,Hollandites sp.,,Bulongites sp.,Paracrochordiceras sp.,Cuccoceras sp.,Paraceratites sp.,Huishuites sp.,Japonites sp.,Judicarites sp.,Anolcites sp.,Beyrichites sp.;双...