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Species Pulleniatina obliquiloculata Parker & Jones 1865


Diagnosis / Definition:
Kennett & Srinivasan (1983):
Test globose, initially trochospiral, later streptospiral almost involute, axial periphery broadly rounded, four to five broadly rounded chambers in the final whorl; sutures almost flush; surface smooth, granular in apertural areas; umbilicus covered; aperture a low arch, extending from umbilical area to periphery and onto spiral side.
Discussion / Comments:
Bolli & Saunders (1985):
The type species for Pulleniatina, Pullenia sphaeroides obliquiloculata Parker & Jones (1865), is considered lost. Bolli et al. (1957) designated a lectotype to which Banner & Blow (1967) gave paralectotype status, claiming that the selected specimen is immature and comparable only to the inner whorls of the lectotype they erected at that time. Following the emended species description by Banner & Blow, P. obliquiloculata differs from P. primalis-P. praecursor in an overlap of the oppositely placed chamber on the umbilical end of the last chamber in such a way that they are joined by a distinct straight suture and not by a point as in P. praecursor. In overall test morphology P. obliquiloculata is distinctly higher in peripheral view, and the equatorial periphery less lobate. Spirally the intercameral sutures are less incised and chambers of early whorls less visible.
Chaisson & Pearson (1997):
The stratigraphic ranges of pulleniatinids are discontinuous in the Atlantic (Bolli and Saunders, 1985) and, moreover, the morphotypes do not have stratigraphic integrity, as they do in the western equatorial Pacific (Chaisson and Leckie, 1993). P. obliquiloculata does not occur in the early Pliocene at Site 925 before the “Atlantic interim”, although its published range (Kennett and Srinivasan, 1983) suggests that it should. Furthermore, the primalis morphotype persists upsection at Site 925 beyond its published LO (Kennett and Srinivasan, 1983; Berggren et al., 1985), as it does in the eastern equatorial Pacific (Chaisson, 1996).
Chaisson & Leckie (1993):
Remarks: This species is distinguished from earlier pulleniatinids by an aperture that extends from the umbilical to the spiral side on the final chamber enclosing earlier chambers to varying degrees. Pulleniatina finalis is included under the present species concept (cf. Orr and Jenkins, 1980, and Kennett and Srinivasan, 1983). Similar species: See Pulleniatina primalis.
Systematics:

1
 Superregnum Eukaryota
  Regnum Protoctista
   Phylum Ciliophora
    Subphylum Postciliodesmatophora
     Ordo Globigerinida
      Superfamilia Globorotaliaceae
       Superfamilia Nonionacea
        Familia Pulleniatinidae
         Genus Pulleniatina
          Species Pulleniatina obliquiloculata
Synonym list:
Kennett & Srinivasan (1983):
1865 Pullenia sphaeroides var. obliquiloculata Parker & Jones. - Parker & Jones : p.368 pl 19 figs 4a-4b.
Chaisson & d'Hondt (2000):
1865 Pullenia sphaeroides var. obliquiloculata Parker & Jones. - Parker & Jones : p.368 pl 19 figs 4a-b
1983 Pulleniatina obliquiloculata Parker & Jones. - Kennett & Srinivasan : p.202 pl 49 fig 2; pl 50 figs 6-9
Bolli & Saunders (1985):
1865 Pullenia sphaeroides var. obliquiloculata Parker & Jones. - Parker & Jones : 365, 368 pl.19, figs.4a-b
1985 Pulleniatina obliquiloculata Parker & Jones. - Bolli & Saunders : 248, 249 figs. 40.4, 41.9-12; 7,10,11
Chaisson & Pearson (1997):
1865 Pullenia sphaeroides var. obliquiloculata Parker & Jones. - Parker & Jones : p.368 pl. 19; fig. 4a-b
1983 Pulleniatina obliquiloculata Parker & Jones. - Kennett & Srinivasan : p.202 pl. 49, fig. 2; pl. 50, fig. 6-9
Vincent & Toumarkine (1990):
1865 Pullenia sphaeroides var. obliquiloculata Parker & Jones. - Parker & Jones : p.368 pl. 19, fig. 4
1990 Pulleniatina obliquiloculata Parker & Jones. - Vincent & Toumarkine : p.836 pl. 7, fig. 20
Chaisson & Leckie (1993):
1865 Pullenia sphaeroides var. obliquiloculata Parker & Jones. - Parker & Jones : p.368 pl. 19; fig. 4a-b
1983 Pulleniatina obliquiloculata Parker & Jones. - Kennett & Srinivasan : p.202 pl. 49, fig. 2; pl. 50, fig. 6-9
References:

Parker,W.K. and Jones,T.R. (1865):
On some foraminifera from the North Atlantic and Arctic Oceans, including Davis Straits and Baffin's Bay . Philosophical Transactions of the Royal Society Vol. 155 p. 325–441

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

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

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
Anonymous: Unedited TaxonConcept data
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