Kennett & Srinivasan (1983):
Test large, equatorial periphery slightly lobulate, chambers spherical, those of final whorl strongly laterally compressed;
three in the final whorl, increasing very rapidly in size as added; spiral sutures curved, depressed; umbilical sutures, radial, depressed, surface coarsely perforate; umbilicus narrow to fairly wide; aperture interiomarginal, umbilical, with distinct umbilical tooth. |
Kennett & Srinivasan (1983):
Gq. praedehiscens is distinguished from Gq. dehiscens by possessing a more rounded and less quadrate test, three chambers in the final whorl, and a lower and narrower apertural face, which directly faces the umbilicus. This species differs from Gq. venezuelana in having three instead of four chambers in the final whorl and in having the chambers of the final whorl laterally more compressed.
Van Eijden & Smit (1991):
Remarks. G. praedehiscens is connected to Globigerina euapertura Jenkins, 1960), its probable ancestor, by intermediate forms. Aberrant final chambers occur commonly. |
Blow,W.H. and Banner,F.T. (1962):
The Mid-Tertiary (Upper Eocene to Aquitanian) Globigerinaceae.
In: Fundamentals of Mid‑Tertiary Stratigraphical Correlation Eds: Eames, F.E.Banner, F.T.Blow, W.H.Clarke, W.J. p. 61‑151
Kennett,J. and Srinivasan,M.S. (1983):
Neogene Planktonic Foraminifera - A Phylogenetic Atlas.
Vincent,E. and Toumarkine,M. (1990):
Neogene planktonic foraminifers from the Western Tropical Indian Ocean, Leg 115.
In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 115 Eds: Duncan, R.A..Backman, J.Peterson, L.C. p. 795-836
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
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