Keijzer,F.G. (1945): Outline of the geology of the eastern part of the province of Oriente, Cuba (E. of 76° W.L.), with notes on the geology of other parts of the island.. , Geographische en Geologische Mededelingen, Physiographisch-Geoloogische Reeks Ser II Vol. 6 p. 1-239
Beckmann,J.P. (1953): Die Foraminiferen der Oceanic Formation (Eocaen-Oligocaen) von Barbados, Kl. Antillen . Ecoglae geologicae Helvetiae Vol. 46 p. 301-412
Bolli,H.M.; Loeblich,A.R. and Tappan,H. (1957): The Planktonic foraminiferal families Hantkeninidae, Orbulinidae, Globorotaliidae, and Globotruncanidae . U.S. National Museum Bull. Vol. 215 p. 3-50
Bolli,H.M. (1957): Planktonic Foraminifera from the Eocene Navet and San Fernando formations of Trinidad, B.W.I. . Bull. U.S. natl. Mus. Vol. 215 p. 155-172
|