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Globuligerina oxfordiana Grigelis 1956 from: Banner, F.T.Desai, D. (1988): A review and revision of the Jurassic-Early Cretaceous Globigerinina, with special reference to the Aptian assemblages of Speeton (North Yorkshire, England) . J. micropalaeontol. Vol. 7(2) p. 143-185
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Species Globuligerina oxfordiana Grigelis 1956


Discussion / Comments:
Boudagher-Fadel et al. (1996):
Remarks: This species has been well described by many authors, and its aperture is very variable in shape but is always a bulimine loop, with its posterior margin set forwards into the umbilicus. A bulla covers the primary aperture and the umbilicus (Plate 2.9, Fig. 8); if the bulla is broken off, its trace almost always remains. The bulla has fewer pseudomuricae than the surface of the chambers but these pseudomuricae often fuse into very short, discontinuous ridges (BouDagher-Fadel et al., 1995, plate 1, fig. 3c) as they do on the surface of the chambers (Plate 2.9, Fig. 11). There are about five chambers in each early whorl, reducing to four in the last whorl; the H:D ratio can be quite variable maybe suggesting the possibility of dimorphism. The material illustrated here is beautifully preserved. On analysis by X-ray diffraction the test proved to be aragonitic (Chapter 1). SEM photographs of fractured walls are shown in Plate 1.2, Figs 1-5.
Systematics:

22
 Subordo Globigerinina
  Superfamilia Favusellacea
   Familia Conoglobigerinidae
    Genus Globuligerina
     Species Globuligerina oxfordiana
Synonym list:
Banner & Desai (1988):
1985 Globuligerina oxfordiana Grigelis. - Grigelis : 93, 108 66-70
1988 Globuligerina oxfordiana Grigelis. - Banner & Desai : 148, 149 pl 1 fig 1 a-c, fig 2, figs 3a-c
Boudagher-Fadel et al. (1997):
1958 Globigerina oxfordiana Grigelis. - Grigelis : 109, 110 fig. 1a-c
1971 Globuligerina oxfordiana Grigelis. - Bignot & Guyader : p.83 pl. 1, fig. 1-3; pl. 2, fig. 3
1986 Globuligerina oxfordiana Grigelis. - Gorbatchik : p.79 pl. 7, fig. 1-3; pl. 9, fig. 1
p 1986 Globuligerina oxfordiana Grigelis. - Stam : p.105 pl. 7, fig. 1-5 (not fig. 6-12); pl. 8, fig. 4-12 (not fig. 1-3); pl. 9, fig. 1-5; pl. 14, fig. 3, 4, 8-15 only
1986 Globuligerina oxfordiana Grigelis. - Wernli & Kindler : 137-147 pl. 1; fig. 1-4, 17-19
1987 Globuligerina oxfordiana Grigelis. - Riegraf : p.192 pl. 2; fig. 1-7
1988 Globuligerina oxfordiana Grigelis. - Banner & Desai : p.146 pl. 1; fig. 1-3
1992 Globuligerina oxfordiana Grigelis. - Samson et al. : 419, 420 pl. 4, fig. 1-14
1995 Globuligerina oxfordiana Grigelis. - Boudagher-Fadel et al. : p.182 pl. 1; fig. 2, 3
1997 Globuligerina oxfordiana Grigelis. - Boudagher-Fadel et al. : 7, 9, 49 pl. 1.1, fig. 1; pl. 1.2, fig. 1-5; pl. 2.9, fig. 1-15; Figure: 2.2
Was used in synonym list of:
References:

Grigelis,A.A. (1958):
Globigerina oxfordiaiza sp.n. - an occurrence of Globigerina in the Upper Jurassic strata of Lithuania. . Nauchnye Doklady Vysshei Shkoly, Geologo-Geograficheskie Nauki Vol. 3 p. 109-111

Bignot,G.. and Guyader,J.. (1971):
Observations nouvelles sur Globigerina oxfordiana Grigelis. , Proceedings of the Second Planktonic Conference, Roma 1970 Vol. 1 p. 79-81

Grigelis,A.A. (1985):
Zonalnaya Stratigrafiya, V Baltiskoi Yuri po Foraminiferam . Ypravlenie Geologii Litovskoi SSR. Litovskii Naucho-Issledovatelskii Geologorazvedochnii Institut Moskva p. 130

Stam,B.. (1986):
Quantitative analysis of Middle and Late Jurassic foraminifera from Portugal and its implications for the Grand Banks of Newfoundland. . Utrecht Micropaleontological Bulletins Vol. 34 p. 1-168

Wernli,R.. and Kindler,P.. (1986):
Les 'protoglobigérines' du Callovo-Oxfordien de Chatillon-sur-Cluses (Préalpes internes, Haute Savoie, France) . Ecologae Geologicae Helvetiae Vol. 79 p. 137-147

Gorbatchik,T.N. (1986):
Jurassic and Early Cretaceous planktonic foraminifera of the south of the USSR [in Russian]. p. 239

Riegraf,W.. (1987):
Planktonic foraminifera (Globuligerinidae) from the Callovian (Middle Jurassic) of southern Germany. . Journal of Foraminiferal Research Vol. 17 p. 190-211

Banner,F.T. and Desai,D. (1988):
A review and revision of the Jurassic-Early Cretaceous Globigerinina, with special reference to the Aptian assemblages of Speeton (North Yorkshire, England) . J. micropalaeontol. Vol. 7(2) p. 143-185

Samson,Y..; Janin,M.C.. and Bignot,G.. (1992):
Les globuligéerines (foraminiféres planctoniques) de I'Oxfordien inférieur de Villers-sur-Mer, Calvados, France) dans leur gisement. . Revue de Paléobiologie Vol. 11 p. 409-431

Boudagher-Fadel,M.K.; Banner,F.T.; Bown,P.R..; Simmons,M.D. and Gorbatchik,T.N. (1995):
Gorbachikella from the Hauterivian, Barremian-Aptian of Tunisia . Revue de Micropaléontologie Vol. 38 p. 179-193

Boudagher-Fadel,M.K.; Banner,F.T.; Gorbatchik,T.K.; Simmons,M.D. and Whittaker,J.E. (1996):
Evolution in the Early Cretaceous planktonic foraminiferal genus Blefuscuiana . Jahrbuch für Geologie und Paläontologie, Abhandlungen Vol. 202 p. 243-258

Boudagher-Fadel,M.K.; Banner,F.T.; Whittaker,J.E. and Simmons,M.D. (1997):
Early Evolutionary History of Planktonic Foraminifera. Vol. 1
Anonymous: Unedited TaxonConcept data
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