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Species Globigerina decoraperta Takayanagi & Saito 1962


Alternative name:
Globigerina (Zeaglobigerina) decoraperta Takayanagi & Saito 1962
Discussion / Comments:
Iaccarino (1985):
This species, evolving from G. druryi, was originally described as a subspecies of that species, having a larger, higher arched aperture with a thickened rim instead of a thin lip and a low to very high spire. The morphologic features of G. decoraperta make it an easily recognizable taxon. Nevertheless it has been seen to show a great variability: high to moderately high arched aperture, low to high troehospire, thickened to thin rim. Also, in size this taxon varies remarkably. In the Late Pliocene G. decoraperta seems to evolve into G. rubescens. In fact, G. decoraperta is well documented from Middle Miocene to Late Pliocene but is never recorded from the Pleistocene.
Srinivasan (1975):
Specimens similar to Globigerina druryi but having a larger, arched aperture and high trochospire are included in this species.
Chaisson & Leckie (1993):
Remarks: Sensu stricto forms of Globigerina decoraperta are rare at this site. Similar species: This species resembles a high trochospire morphotype of Globigerina apertura.
Synonym list:
Iaccarino (1985):
1962 Globigerina druryi decoraperta Takayanagi & Saito. - Takayanagi & Saito : p.85 pl. 28, figs. 10a-c
1985 Globigerina decoraperta Takayanagi & Saito. - Iaccarino : p.301 figs. 5.5a-c; 4
Srinivasan (1975):
1962 Globigerina decoraperta Takayanagi & Saito. - Takayanagi & Saito : p.85 Pl. 28; Fig. 10a-c
1975 Globigerina decoraperta Takayanagi & Saito. - Srinivasan : p.143 Pl. 1; Fig. 3
Chaisson & Leckie (1993):
1962 Globigerina druryi decoraperta Takayanagi & Saito. - Takayanagi & Saito : p.85 pl. 28; fig. 10a-c
1983 Globigerina decoraperta Takayanagi & Saito. - Kennett & Srinivasan : p.48 pl. 9; fig. 4-6
1993 Globigerina decoraperta Takayanagi & Saito. - Chaisson & Leckie : p.169 pl. 1; fig. 7
Was used in synonym list of:
Globoturborotalita decoraperta Takayanagi & Saito 1962
Globigerina (Zeaglobigerina) decoraperta Takayanagi & Saito 1962
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

Srinivasan,M.S. (1975):
Middle Miocene Planktonic Foraminifera from the Hut Bay Formation, Little Andaman Island, Bay of Bengal . Micropaleontology Vol. 21(2) p. 133-150

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

Iaccarino,S. (1985):
Mediterranean Miocene and Pliocene planktic foraminifera.
In: Plankton stratigraphy Eds: Bolli, H.M.Saunders, J.B.Perch-Nielsen, K. p. 283-314

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
Anonymous: Unedited TaxonConcept data
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