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Species Globigerinoides bisphericus Todd 1954


Discussion / Comments:
Bolli & Saunders (1985):
A short lived species differing from its probable ancestor, G. trilobus (Reuss), in its more enveloping last chamber which almost completely hides the umbilicus. Only 2 apertures are present along the suture between the last and earlier chambers though more apertures may remain open on the spire.
Synonym list:
Bolli & Saunders (1985):
1954 Globigerinoides bispherica Todd. - Todd et al. : p.681 pl. 1, figs. 1a-c
1985 Globigerinoides bisphericus Todd. - Bolli & Saunders : p.200 figs. 24.8; 7,9,12
Vincent & Toumarkine (1990):
1954 Globigerinoides bispherica Todd. - Todd et al. : p. 681 pl. 1, figs. 1 and 4
1990 Globigerinoides bisphericus Todd. - Vincent & Toumarkine : p. 796
Was used in synonym list of:
Globigerinoides sicana/bisphericus
References:

Todd,R.; Cloud,P.E.; Low,D. and Schmidt,R.G. (1954):
Probable occurrence of Oligocene on Saipan . Amer. Journ. Sci. Vol. 252 p. 673-682

Bolli,H.M. and Saunders,J.B. (1985):
Oligocene to Holocene low latitude planktic foraminifers.
In: Plankton Stratigraphy Eds: Bolli, H.M.Saunders, J.B. p. 155-262

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
Anonymous: Unedited TaxonConcept data
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