Ningqiangophyllum Ge & Yu, 1974

in Zhongguo Kexue Yuan, Nanking Dizhi Gushengwu Yanjiusuo [Acad. Sinica, Nanking Inst. Geol. Paleont. (Ed. )], Xinan diqu digushengwu tuce. [A handbook of the stratigraphy and palaeontology in southwest China. ] Science Pres Peking: 171.