Banner & Desai (1988):
We follow Bolli (1959) in distinguishing this species by its consistently depressed, reniform chambers. which are distinctly longer than they are high.
Like B. blowi, it possesses a broad umbilicus, but the
two species seem consistently to be separable on their
chamber shapes.
Boudagher-Fadel et al. (1997):
Remarks: This species is distinguished by its
reniform chambers, which are distinctly longer
than high, and its broad umbilicus. |
Banner & Desai (1988):
Boudagher-Fadel et al. (1997):
|
Bolli,H.M. (1959): Planktonic foraminifera from the Cretaceous of Trinidad, B.W.I. . Bulletins of American Paleontology Vol. 39 p. 257-277
Longoria,J.F. (1974): Stratigraphic, morphologic and taxonomic studies of Aptian planktonic Foraminifera . Revista Espanola de MicropaleontologíaNo extraord p. 1-107
Masters,B.A. (1977): Mesozoic Planktonic Foraminifera. In: Oceanic Micropalaeontology Eds: Ramsay, A.T.S. p. 301-731
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
Boudagher-Fadel,M.K.; Banner,F.T.; Whittaker,J.E. and Simmons,M.D. (1997): Early Evolutionary History of Planktonic Foraminifera. Vol. 1
Boudagher-Fadel,M.K.; Banner,F.T.; Gorbatchik,T.N. and Simmons,M.D. (1997): Barremian-Aptian planktonic foraminifera from the Crimea, compared to those from Tunisia and the North Sea area.. In: Micropalaeontology of the Former Soviet Union Eds: Simmons, M.D.
|