Authors Year Title
Bogoslovskaya 1990 Osnovye puti razvitiya i klassifikatsiya pozdnepaleozoyskikh ammonoidey Marathonitaceae i Cyclolobaceae.
Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 243: 70-86, fig.1-3; Moskva.
Chao 1955 Some Permian ammonoids from Kwangsi and their significance. [In Chinese, with extended English summary].
Acta Palaeontologica Sinica, 3 (2): 146-158, 2 pls.
Xu & Wei 1977 Fossil Atlas of South-Central China, part 2, Cephalopoda. [In Chinese.]
Yichang Institute of Geology and Mineral Resources 1977:   p.537-582, pl.204-218, (Geological Publishing House).
Zhao 1980 Origin, classification, evolution and distribution of the family Cyclolobidae.
Acta Paleontologica Sinica, 19 (2): 79-90, fig.1-5, tab.1-2; Beijing.