Pseudotextulariella cretosa ( Cushman, 1932 )

Besen, Richard M., Struck, Ulrich & Seibertz, Ekbert, 2021, Albian to Turonian agglutinated foraminiferal assemblages of the Lower Saxony Cretaceous sub-basins - implications for sequence stratigraphy and paleoenvironmental interpretation, Fossil Record 24 (2), pp. 395-441 : 424-425

Pseudotextulariella cretosa ( Cushman, 1932)

Fig. 8s

1932. Textulariella cretosa Cushman.

1989. Pseudotextulariella cretosa (Cushman) ; Frieg, p. 362, text-figs. 2 a–h, pl. 1, figs. 1–11.

Material

A total of 139 specimens from the Baddeckenstedt section, 1 specimen from the Söhlde section, 5 specimens from the Wunstorf Wu2010/1 core, 35 specimens from the Wunstorf Wu2010/3 core, and 4 specimens from the Wunstorf Wu2010/4 core.

Remarks

This species is used as index fossil for the Cenomanian of the English chalk (Hart et al., 1989), but Frieg (1989) already proved its existence in the lower part of the Albian. Our findings of four specimens in the middle Turonian of Wunstorf extends the stratigraphical range of this species and supports the idea of Frieg (1989) of a facies related appearance of Pseudotextulariella cretosa as it does not appear in the middle Turonian of Söhlde .

Occurrence

Abundant to common in the lower and middle Cenomanian at Baddeckenstedt, rare to very rare in the Cenomanian and Turonian of Wunstorf, and absent in the Turonian of Söhlde.

Figures

Figure 8. Late Albian to Turonian agglutinated foraminifers from the Lower Saxonian Cretaceous; scale bars are 100 µm. (a) Tritaxia gaultina, Wunstorf Wu2010/1, 19.05 m. (b) Tritaxia tricarinata, Wunstorf Wu2010/1, 19.05 m. (c) Tritaxia macfadyeni, Wunstorf Wu2010/1, 34.10m. (d–e) Eggerellina brevis, Baddeckenstedt section, 19.30 m. (f) Eggerellina mariae, Wunstorf Wu2010/3, 30.15m. (g) Flourensina intermedia, Wunstorf Wu2010/1, 54.80 m. (h) Gaudryina sp. 1, Baddeckenstedt section, 39.00m. (i) Verneuilinoides sp., Wunstorf Wu2010/4, 48.95 m. (j) Vialovella frankei, Wunstorf Wu2010/1, 15.20 m. (k) Arenobulimina bochumensis, Baddeckenstedt section, 9.00 m. (l) Arenobulimina preslii, Wunstorf Wu2010/4, 43.30 m. (m) Arenobulimina truncata, Wunstorf Wu2010/4, 43.30m. (n–o) Ataxophragmium depressum, Wunstorf Wu2010/4, 58.60 m. (p) Hagenowella elevata, Wunstorf Wu2010/4, 58.60 m. (q) Voloshinoides advenus, Wunstorf Wu2010/1, 29.25 m. (r) Voloshinoides anglicus, Baddeckenstedt section, 7.00m. (s) Pseudotextulariella cretosa, Wunstorf Wu2010/1, 19.05m. (t) Kadriayina gradata, Wunstorf Wu2010/3, 66.05 m. (u) Marssonella ozawai, Wunstorf Wu2010/1, 15.20 m.