†Protolenella Lu Yen-hao, Chang, Chien Yi-yuan, Chu Chao-ling, Lin Huan-ling, Chow Tse-yi, Chien Yi, Zhang Sen-gui & Wu Hongji 1974

Lu Yen-hao, Chang, Chien Yi-yuan, Chu Chao-ling, Lin Huan-ling, Chow Tse-yi, Chien Yi, Zhang Sen-gui & Wu Hongji 1974. [Cambrian Trilobita.]. Nanking lnstitute of Geology Palaeontology, [Ed]. IA handbook of the stratigraphy and palaeontology in southwest China] l-454, figs l-66, pls 1-202., Science Press, Academia Sinica, Peking., 1974: 49-56. Chapter pagination: 49-56