First issued in release COL21.4.
Last used in release COL23.9
Published in
Xia, G. Y., Li, J. X., Wang, Y. H., & Dong, W. L. (1986). The fusulinid zones and the boundary of Carboniferous-Permian in Longlin region, Guangxi. Bulletin of Yichang Institute of Geology and Mineral Resources, CAGS, 11: 67–104 (in Chinese with English abstract). https://www.marinespecies.org/foraminifera/aphia.php?p=sourcedetails&id=300502