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Shi, B.-D. (1982). Bivalvia. In: Xi'an Institute of Geology and Mineral Resources (Ed.) Paleontological Atlas of Northwest China. Shaanxi Gansu Ningxia Volume. Part I Precambrian and Early Paleozoic. Geological Publishing House, Beijing, pp. 179-181.
Shi, B.-D. (1982). Bivalvia. In: Xi'an Institute of Geology and Mineral Resources (Ed.) Paleontological Atlas of Northwest China. Shaanxi Gansu Ningxia Volume. Part I Precambrian and Early Paleozoic. Geological Publishing House, Beijing, pp. 179-181.
