Y. Qian, M. Chen, and Y. Y. Chen. (1979). Hyolithids and other small shelly fossils from the Lower Cambrian Huangshandong Formation in the eastern part of the Yangtze Gorge. Acta Palaeontologica Sinica. 18(3):207-230.
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Y. Qian, M. Chen, and Y. Y. Chen
1979
Hyolithids and other small shelly fossils from the Lower Cambrian Huangshandong Formation in the eastern part of the Yangtze Gorge