Authors Year Title
Chao 1965 The Permian ammonoid-bearing formations of South China.
Scientia Sinica, 14 (12): 1813-1826, fig.1-4, pl.1-2; Beijing.
Chao & Liang 1974 Permian Ammonoids. In: Handbook of the Stratigraphy and Paleontology in Southwest China. [In Chinese].
Nanjing Institute of Geology and Palaeontology, Academia Sinica: 303-307, pl.159-160, Nanjing.
Fujikawa & Ishibashi 1999 Carboniferous and Permian Ammonoids from Northern Thailand (Paleontological Study of Paleozoic Cephalopods in Southeast Asia - 1).
Memoirs of the Faculty of Science, Kyushu University, Series D, 30 (3): 91-110, 11 fig.,  pl.2-3, Fukuoka.
Zhao, Liang & Zheng 1978 Late Permian cephalopods of South China.
Palaeontologica Sinica, 154, N.S.B,12: 1-194, fig.1-105, pl.1-34; Beijing.