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Li, Z.-S. (1982). Gastropoda. In: Regional Geological Survey Team of Nei Monggol (Ed.) The Mesozoic Stratigraphy and Paleontology of Guyang Coal-Bearing Basin, Neimenggol Autonomous Region, China. Geological Publishing House, Beijing, pp. 43-48.
Li, Z.-S. (1982). Gastropoda. In: Regional Geological Survey Team of Nei Monggol (Ed.) The Mesozoic Stratigraphy and Paleontology of Guyang Coal-Bearing Basin, Neimenggol Autonomous Region, China. Geological Publishing House, Beijing, pp. 43-48.