Brachiopods Near the Permian-Triassic Boundary in South ChinaDOI: info:10.5479/si.00810266.76.1Smithsonian Institution68
Xu, Guirong and Grant, Richard E. 1994. Brachiopods Near the Permian-Triassic Boundary in South China. Washington, D.C.: Smithsonian Institution. In Smithsonian Contributions to Paleobiology, 76. https://doi.org/10.5479/si.00810266.76.1.