Bolli,H.M. (1959): Planktonic foraminifera from the Cretaceous of Trinidad, B.W.I. . Bulletins of American Paleontology Vol. 39 p. 257-277
Marianos,A.W. and Zingula,R.P. (1966): Cretaceous planktonic foraminifera from Dry Creek, Tehama County, California . Journal of Paleontology Vol. 40 p. 328-342
Longoria,J.F. (1974): Stratigraphic, morphologic and taxonomic studies of Aptian planktonic Foraminifera . Revista Espanola de MicropaleontologíaNo extraord p. 1-107
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
Altiner,D.A.. (1991): Microfossil biostratigraphy (mainly foraminifers) of the Jurassic-Lower Cretaceous carbonate successions in north-western Anatolia (Turkey) . Geologica Romana Vol. 27 p. 167-213
Boudagher-Fadel,M.K.; Banner,F.T.; Bown,P.R..; Simmons,M.D. and Gorbatchik,T.N. (1995): Gorbachikella from the Hauterivian, Barremian-Aptian of Tunisia . Revue de Micropaléontologie Vol. 38 p. 179-193
Boudagher-Fadel,M.K.; Banner,F.T.; Whittaker,J.E. and Simmons,M.D. (1997): Early Evolutionary History of Planktonic Foraminifera. Vol. 1
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