Authors Year Title
Pavlov 1967 Permskie ammonoidei yugo-vostochnogo Pamira.
Zapiski Leningradskogo ordena Lenina i Trudy Kras. Znam. gorn. Inst. im. G.V.Plekhanova, 53 (2): 69-78, fig.1-7, pl.1-7; Leningrad.
Sheng & Liu 1983 Early Permian ammonites fauna from Jiajia area, Xizang (Tibet).
The geology of the Qinghai-Xizang (Tibet) Plateau: 237-252, fig.1-11, pl.20; Beijing.
Tumanskaia 1963 Permskie ammonei tsentral'nogo Pamira i ikh stratigraficheskoe znachenie.
Otd. geol.-geogr. nauk Akad. Nauk SSSR: 1-119, fig.1-48, pl.A,B,1-23; Moskva.
Zhou 1989 Age of the Longyin Formation in Southwest Guizhou province.
Science in China (ser.B) 32: 1361-1370, 1 fig., 2 tabl., 1 pl.