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Urazaeva, M. N. (2018). Revision of Late Permian nonmarine bivalves of the genus Opokiella Plotnikov, 1949. Paleontological Journal. 52(7): 768-776.
Urazaeva, M. N. (2018). Revision of Late Permian nonmarine bivalves of the genus Opokiella Plotnikov, 1949. Paleontological Journal. 52(7): 768-776.