Author: Solovjev A.N., 1971.:
Title: Pozdneyurskie i rannemelovye dizasteridnye morskie ezhi SSSR. [Trudy Paleont. Inst., 131.]
Description: Moskva. Large 8vo. Pp. 124 p., 16 pls., 56 figs.,bibliogr., index. Orig. wrappers. - in Russian. "Late Jurassic and Early Cretaceous Discasterid Echinoids of the USSR."

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