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Globigerina (Globigerina) quinqueloba Natland 1938 from: Kennett, J.Srinivasan, M.S. (1983): Neogene Planktonic Foraminifera - A Phylogenetic Atlas.
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Species Globigerina (Globigerina) quinqueloba Natland 1938


Alternative name:
Diagnosis / Definition:
Kennett & Srinivasan (1983):
Test small, slightly compressed, trochospiral, five chambers in the final whorl, rapidly increasing in size as added; chambers inflated, subglobular; final chamber distinctly spinose, early chambers with reticulate ridges and pore pits; sutures radial, depressed; aperture an elongate slit often at the end of flaplike extension of the final chamber.
Discussion / Comments:
Kennett & Srinivasan (1983):
Gg. (Gg.) quinqueloba is morphologically similar to Gg. (Gg.) ciperoensis from which it seems to have descended during the earliest Miocene. Individuals with flaplike extension of the final chamber fused to one or more of the earlier chambers of the final whorl are common in Pliocene and Quaternary assemblages and resemble Turborotalita humilis.
Systematics:

3
 Species Globigerina (Globigerina) quinqueloba
Synonym list:
Kennett & Srinivasan (1983):
1938 Globigerina quinqueloba Natland. - Natland : p.149 pl 6 figs 7a-c
Was used in synonym list of:
References:

Natland,M.L. (1938):
New species of Foraminifers from off the West Coast of North America and from the later Tertiary of the Los Angeles basin . Scripps Inst. Oceanogr. Bull. Tech. Ser. Vol. 4(5) p. 137-164

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

Anonymous: Unedited TaxonConcept data
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