	Authors	Year	Title
	Yin	1935	Upper Palaeozoic ammonoids of China. Palaeontologia Sinica, Ser. B, 11 (4): 1-45, fig.1-10, pl.1-5; Beijing.
	Yin	1937	A New Gastrioceras from Sinkiang. Bulletin Geological Society China, 17: 355-362, 1 text-fig., 2 pls., Nanjing.