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Globorotalia cibaoensis Bermudez 1949 from: Chaisson, W.P.Leckie, R.M. (1993): High-Resolution Planktonic Foraminifer Biostratigraphy of Site 806, Ontong Java Plateau (Western Equatorial Pacific). In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 130 Eds: Berger, W.H.Kroenke, L.W..Mayer, L.A..et al. p. 137-178
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Anonymous: Unedited TaxonConcept data
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Species Globorotalia cibaoensis Bermudez 1949


Alternative name:
Discussion / Comments:
Chaisson & Leckie (1993):
Similar species: Globorotalia cibaoensis is a variable taxon, particularly in its peripheral outline. It ranges from biconvex to nearly planoconvex, with the spiral side being nearly flat and in extreme cases slightly concave. The planoconvex forms tend to have five chambers, rather than four to four and a half, and resemble G. crassula in possessing an angular, keel-like final chamber. G. juanai has more inflated chambers on the umbilical side and a more rounded periphery. G. margaritae differs from G. cibaoensis in being concavo-convex (i.e., convex ventral side) and in possessing a thin keel. Also see Globorotalia scitula.
Synonym list:
Chaisson & Leckie (1993):
1949 Globorotalia cibaoensis Bermudez. - Bermudez : p.285 pl. 22; fig. 21-23
1983 Globorotalia (Hirsutella) cibaoensis Bermudez. - Kennett & Srinivasan : p.136 pl. 32; fig. 1-3
1993 Globorotalia cibaoensis Bermudez. - Chaisson & Leckie : p.174 pl. 6; fig. 12-14 and 19
Was used in synonym list of:
Stratigraphy - absolute ages:
FAD: 7.8 ± 0 [Ma], Berggren et al. (1995)
References:

Bermudez,P.J. (1949):
Tertiary smaller foraminifers of the Dominican Republic . Spec. Publ.Cushman Lab. Foraminiferal Res., Vol. 25 p. 1-322

Kennett,J. and Srinivasan,M.S. (1983):
Neogene Planktonic Foraminifera - A Phylogenetic Atlas.

Chaisson,W.P. and Leckie,R.M. (1993):
High-Resolution Planktonic Foraminifer Biostratigraphy of Site 806, Ontong Java Plateau (Western Equatorial Pacific).
In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 130 Eds: Berger, W.H.Kroenke, L.W..Mayer, L.A..et al. p. 137-178

Berggren,W.A.; Kent,D.V.; Swisher,C.C. and Aubry,M.P. (1995):
A revised Cenozoic Geochronology and Chronostratigraphy.
In: Geochronology Time Scales and Global Stratigraphic Correlation, SEPM Special Publication Vol. 54
Anonymous: Unedited TaxonConcept data
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