Vetrova, S. V. (1975). New genus Quadrimorphinella and its representatives from the Eocene of Azerbaidzhan [in Russian]. Izvestiya Akademii Nauk Azerbaidzhanskoi SSR, Seriya nauk o zemle Geologya. 2: 26-32.
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Vetrova, S. V.
1975
New genus Quadrimorphinella and its representatives from the Eocene of Azerbaidzhan [in Russian]
Izvestiya Akademii Nauk Azerbaidzhanskoi SSR, Seriya nauk o zemle Geologya