Altas rukovodyashchikh form iskopaemykh faun SSSR: v. 5. Sredniy i verkhniy otdely kamennougolnoy sistemy [Atlas of the leading forms of the fossil faunas of USSR; v. 5, Middle and Upper Carboniferous System]
I.I. Gorskie
1939
Article
Nauchno-Issledovatelskii Geologo-Razvedochnyi Institut
5:1-155
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