Shi, B.-D. (1983). Bivalvia. In: Xi'an Institute of Geology and Mineral Resources (Ed.) Paleontological Atlas of Northwest China. Shaanxi, Gansu and Ningxia Volume. Part II Upper Palaeozoic. Geological Publishing House, Beijing, pp. 426-438.
425541
Shi, B.-D.
1983
Bivalvia
In: Xi'an Institute of Geology and Mineral Resources (Ed.) Paleontological Atlas of Northwest China. Shaanxi, Gansu and Ningxia Volume. Part II Upper Palaeozoic. Geological Publishing House, Beijing, pp. 426-438