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Globigerina (Zeaglobigerina) decoraperta Takayanagi & Saito 1962 from: Kennett, J.Srinivasan, M.S. (1983): Neogene Planktonic Foraminifera - A Phylogenetic Atlas.
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Species Globigerina (Zeaglobigerina) decoraperta Takayanagi & Saito 1962


Alternative name:
Diagnosis / Definition:
Kennett & Srinivasan (1983):
Test compact, low to medium-high trochospiral, equatorial periphery lobulate, chambers spherical to subspherical, four in the final whorl, increasing uniformly in size as added; sutures on spiral and umbilical side almost radial and depressed; umbilicus wide and deep; aperture interiomarginal, umbilical, large semicircular, bordered by a rim.
Discussion / Comments:
Kennett & Srinivasan (1983):
Gg. (Zg.) decoraperta is distinguished from Gg. (Zg.) woodi by its higher-spired test and from Gg. (Zg.) rubescens mainly by its larger test, slightly smaller aperture, and less coarsely cancellate surface. Gg. (Zg.) decoraperta appears to have evolved from Gg. (Zg.) woodi during the early Middle Miocene (Orbulina suturalis Zone) in cool subtropical waters and may have given rise to Gg. (Zg.) rubescens during the Middle Pliocene.
Synonym list:
Kennett & Srinivasan (1983):
1962 Globigerina decoraperta Takayanagi & Saito. - Takayanagi & Saito : p.85 pl 28 figs 10a-c
References:

Takayanagi,Y. and Saito,T. (1962):
Planktonic foraminifers from the Nobori Formation, Shikoku, Japan. . Science Reports of the Tohoku University Serie 2 Vol. 5 p. 67-106

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

Anonymous: Unedited TaxonConcept data
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