Likharev, B. K., (1927), Palaeofusulina nana sp. nov. iz antrakolitovykh otlozheniy severnogo Kavkaza [Palaeofusulina nana sp. nov. from the Anthracolithic strata of the northern Caucasus], lzvestiya Geologicheskogo Komitela 45(2)[1926]: 59-66.
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Likharev, B. K.
1927
Palaeofusulina nana sp. nov. iz antrakolitovykh otlozheniy severnogo Kavkaza [Palaeofusulina nana sp. nov. from the Anthracolithic strata of the northern Caucasus