Subbotina,N.N. (1949): Microfauna of the Cretaceous deposits of the southern slope of the Caucasus. Microfauna of the oil fields of the USSR . Trudy Vsesoyuznogo Neftyanogo Nauchno-Isledovatelskogo Geologo-Razvedochnogo Instituta (VNIGRI), Novaya Seriya Vol. 34 p. 5-36
Banner,F.T. and Desai,D. (1988): A review and revision of the Jurassic-Early Cretaceous Globigerinina, with special reference to the Aptian assemblages of Speeton (North Yorkshire, England) . J. micropalaeontol. Vol. 7(2) p. 143-185
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