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Species Neogloboquadrina dutertrei d'Orbigny 1839


Diagnosis / Definition:
Kennett & Srinivasan (1983):
Test globose, trochospiral, spire flat to slightly convex, five to six inflated chambers in the final whorl; sutures on spiral side almost radial to slightly curved, depressed; on umbilical side almost radial, depressed; surface uniformly moderately perforate, with distinct pore pits in tropical forms, pore pits partly or fully constricted by growth of euhedral calcite crystals in subtropical forms; umbilicus open, moderately broad and deep; aperture umbilical, umbilical-extraumbilical in young specimens; tooth-like umbilical plates often present.
Discussion / Comments:
Chaisson & Pearson (1997):
In Sample 154-925B-20H-5, 65-67cm, “humerosa,” “dutertrei,” and “pseudopima” (cf. Bolli and Saunders, 1985) morphotypes can all be distinguished. In Sample 154-925B-18H-5, 65-67 cm, neogloboquadrinids are rare, and the “humerosa” vs. the “dutertrei” morphotypes are distinguished by the greater angle of the trochospire in the latter. In Samples 154-925B-13H-3, 65-67cm, and 11H-5, 65-67 cm, “dutertrei” with apertural plates are observed. Specimens of “dutertrei” lacking apertural plates are observed in Sample 154-925B-10H-5, 65-67 cm. In Sample 154-925B-5H-6, 65-67 cm, six-chambered neogloboquadrinids have umbilical apertures and no apertural plates, thus combining the characteristics of “dutertrei” and “humerosa.”
Chaisson & Leckie (1993):
Similar species: In Hole 806B, the ranges of N. dutertrei andN. acostaensis overlap from the top of Subzone N 17a to the middle of Zone N18/N19. N. dutertrei has more inflated chambers, a coarser cancellate texture, and a more open aperture. Its apertural flap, when present, rarely covers the aperture completely (e.g., see Plate 8, Fig. 9). See N. humerosa.
Systematics:

1
 Superregnum Eukaryota
  Regnum Protoctista
   Phylum Ciliophora
    Subphylum Postciliodesmatophora
     Ordo Globigerinida
      Superfamilia Globorotaliaceae
       Superfamilia Nonionacea
        Familia Globorotaliidae
         Genus Neogloboquadrina
          Species Neogloboquadrina dutertrei
Synonym list:
Kennett & Srinivasan (1983):
1839 Globigerina dutertrei d'Orbigny. - d'Orbigny : p.84 pl 4 figs 19-21
1901 Globigerina eggeri Rhumbler. - Rhumbler : (junior synonym)
Chaisson & d'Hondt (2000):
1839 Globigerina dutertrei d'Orbigny. - d'Orbigny : pl 2 fig 1 (lectotype)
1983 Neogloboquadrina dutertrei d'Orbigny. - Kennett & Srinivasan : p.198 pl 48 figs 7-9
Chaisson & Pearson (1997):
1839 Globigerina dutertrei d'Orbigny. - d'Orbigny : pl. 2; fig. 1 (lectotype)
1983 Neogloboquadrina dutertrei d'Orbigny. - Kennett & Srinivasan : p.198 pl. 48; fig. 7-9
Vincent & Toumarkine (1990):
1839 Globigerina dutertrei d'Orbigny. - d'Orbigny : p.84 pl.4, figs.19-21
1990 Neogloboquadrina dutertrei d'Orbigny. - Vincent & Toumarkine : p.836 pl.7, fig.12-16
Chaisson & Leckie (1993):
1839 Globigerina dutertrei d'Orbigny. - d'Orbigny : pl. 2; fig. 1 (lectotype)
1983 Neogloboquadrina dutertrei d'Orbigny. - Kennett & Srinivasan : p.198 pl. 48; fig. 7-9
1993 Neogloboquadrina dutertrei d'Orbigny. - Chaisson & Leckie : p.176 pl. 8; fig. 4
References:

d'Orbigny,A.D. (1839):
Foraminifères.
In: Histoire Physique, Politique et Naturelle de l'ile de Cuba2 (atlas vol 8 pls 1-12) Eds: de la Sagra, R. p. 1-224

Rhumbler,L. (1901):
Nordische Plankton-Foraminiferen.
In: Nordisches Plankton Vol. 1 Eds: Brandt, K. p. 1-33

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

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

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

Chaisson,W.P. and Pearson,P.N. (1997):
Planktonic foraminifer biostratigraphy at Site 925: middle Miocene–Pleistocene.
In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 154 Eds: Shackleton, N.J.Curry, W.B.Richter, C.Bralower, T.J.

Chaisson,W.P. and d'Hondt,S.L. (2000):
Neogene planktonic foraminifer biostratigraphy at Site 999, Western Caribbean Sea.
In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 165 Eds: Leckie, R.M.Sigurdsson, H.Acton, G.D.Draper, G. p. 19-56
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