Moskvin, M. M. & Shimanskaya, N. V. 1981. [Palaeocene Echinocorys (sea urchins) from the territory of USSR]. Byulleten' Moskovskogo Obshchestva Ispytatelei Prirody. Otdel Geologicheskii 56, 127-137.
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Moskvin, M. M.; Shimanskaya, N. V.
1981
Palaeocene Echinocorys (sea urchins) from the territory of USSR]. Byulleten' Moskovskogo Obshchestva Ispytatelei Prirody