Tritaxia tricarinata ( Reuss 1845 )

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 : 418

Tritaxia tricarinata ( Reuss 1845)

Fig. 8c

1845. Textularia tricarinata Reuss , p. 39, pl. 8, fig. 60.

1863. Dentalinopsis tricarinatum (Reuss) ; Reuss, p. 119, pl. 18, fig. 13.

1892. Tritaxia tricarinata (Reuss) ; Chapman, p. 34–35, pl. 11, fig. 1.

1972. Tritaxia tricarinata (Reuss) ; HanzlíkovAE, p. 54, pl. 11, fig. 11.

1980. Tritaxia tricarinata (Reuss) ; Frieg, p. 234.

Material

A total of 722 specimens from the Baddeckenstedt section, 14 specimens from the Söhlde section, 387 specimens from the Wunstorf Wu2010/1 core, 371 specimens from the Wunstorf Wu2010/3 core, and 86 specimens from the Wunstorf Wu2010/4 core.

Remarks

Frieg (1980) showed a clear transition of the suture angles between Tritaxia tricarinata and T. pyramidata (Reuss) . T. pyramidata must be seen as a junior synonym.

Occurrence

Very abundant to common in the Cenomanian, abundant to very rare in the Turonian at Wunstorf, and rare to very rare at 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.