Plummer,H.J. (1926): Foraminifera of the Midway Formation in Texas . University of Texas Bulletin Vol. 2644(1) p. 1-206
Brönnimann,P. (1952): Globigerinidae from the upper Cretaceous (Cenomanian-Maestrichtian) of Trinidad, B.W.I. . Bulletins of American paleontology Vol. 34 p. 5-71
Gandolfi,R. (1955): The genus Globotruncana in Northeastern Colombia . Bulletins of American paleontology Vol. 36 p. 7-118
Caron,M. (1985): Cretaceous planktic foraminifera. In: Plankton stratigraphy Eds: Bolli, H.M.Saunders, J.B.Perch-Nielsen, K. p. 17–86
Van Eijden,A.J.M. and Smit,J. (1991): Eastern Indian Ocean Cretaceous and Paleogene quantitative biostratigraphy. In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 121 Eds: Weissel, J.Peirce, J.Taylor, E.Alt, J. p. 77-123
|