Renz,O. (1936): Stratigraphie und mikropaläontologische Untersuchung der Scaglia (Obere Kreide-Tertiär) im zentralen Apennin . Ecoglae geologicae Helvetiae Vol. 29 p. 1-149
Caron,M. and Luterbacher,H.P. (1969): On some type specimens of Cretaceous planktonic foraminifera . Contrib. Cushman Found. Foram. Res. Vol. 20 p. 23
Pflaumann,U. and Krasheninnikov,V.. (1977): Early Cretaceous planktonic foraminifers from eastern North Atlantic, DSDP Leg 41 . In: Initial Reports of the Deep Sea Drilling Project 41 , Abidjan, Ivory Coast, to Malaga, Spain, February-April 1975 Eds: Gardner, J..Herring, J.. p. 539-564
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