bforams@mikrotax - Annectina grzybowskii

NB This site is under active development, current content in the main database is primarily from Bolli et al 1994, Hayward et al. 2012, Holbourn et al. 2013, Holbourn and Kaminski 1997, Alegret & Thomas 2001, and Katz et al. 2003. It is intended to expand and develop this to provide rather comprehensive coverage of Mesozoic and Cenozoic deep-sea benthic foraminifera.

Taxonomy

Citation: Annectina grzybowskii (Jurkiewicz), 1960

Basionym: Glomospira grzybowskii Jurkiewicz, 1960

Synonyms:

Glomospirella biedai Samuel, 1977, p. 29, pl. 3, fig. 16; pl. 21, fig. 3. [according to Holbourn et al. 2013]
Glomospirella grzybowskii (Jurkiewicz). –Hemleben and Tröster, 1984, p. 519, pl. 1, fig. 24. –Charnock and Jones, 1990, p. 157, pl. 2, fig. 13; pl. 14, fig. 10. –Bubik, 1995, p. 81, pl. 9, fig.12. [according to Holbourn et al. 2013]
Annectina grzybowskii (Jurkiewicz). –Kaminski and Gradstein, 2005, pp. 192–195, fig. 28, pl. 28. [according to Holbourn et al. 2013]

Taxonomic discussion: Annectina biedai Gradstein and Kaminski differs from Annectina grzybowskii (Jurkiewicz) by its thinner, more compressed test, larger number of whorls in the planispiral part, and smaller initial triloculine portion. Annectina biedai mainly occurs in younger strata, becoming extinct in the Oligocene (Gradstein and Kaminski, 1997). [Holbourn et al. 2013]

Description

Test large, elliptical to subcircular in outline, composed of a proloculus followed by an undivided, tubular, second chamber, initially forming a milioline coil. Final whorls (up to five) become progressively planispiral. Chamber walls are thick, medium to finely agglutinated, and well cemented. The primary aperture is a round opening that occupies the end of the planispiral tube. [Holbourn et al. 2013]

Biogeography and Palaeobiology

Tethys and eastern Atlantic. Common in flysch-type assemblages. See also Observed Occurrences in Kaminski and Gradstein (2005).

Bathyal to abyssal. [Holbourn et al. 2013]

Biostratigraphic distribution

Geological Range:
Notes: Late Cretaceous (Campanian) to Late Paleocene.
Last occurrence (top): within Late Paleocene Sub-Epoch (55.96-59.24Ma, top in Thanetian stage). Data source: Holbourn et al. 2013
First occurrence (base): within Campanian Stage (72.17-83.65Ma, base in Campanian stage). Data source: Holbourn et al. 2013

Plot of occurrence data:
NB The ranges given for genera and higher taxa are the total ranges of species included in that taxon in this database - so the true total range of the taxon will usually be longer

References:

Alegret, L. & Thomas, E. (2001). Upper Cretaceous and lower Paleogene benthic foraminifera from northeastern Mexico. Micropaleontology. 47(4): 269-316. gs

Bubik, M. (1995a). Cretaceous to Paleogene agglutinated foraminifera from the Bile Karpaty unit. In, Kaminski, M. A., Geroch, S. , & Gasinski, M. A. (eds) Proceedings of the Fourth International Workshop on Agglutinated Foraminifera. Grzybowski Foundation Special Publication . (3): 71-116. gs

Charnock, M. A. & Jones, R. W. (1990). Agglutinated foraminifera from the Palaeogene of the North Sea. In, Hemleben, C., Kaminski, M. A., Kuhnt, W. , & Scott, D. B. (eds) Paleoecology, Biostratigraphy, Paleoceanography and Taxonomy of Agglutinated Foraminifera,. Nato ASI (Advanced Study Institute) Series . 139-244. gs

Gradstein, F. M. & Kaminski, M. A. (1997). New species of Paleogene deep-water agglutinated foraminifera from the North Sea and Norwegian Sea. Annales Societatis Geologorum Poloniae. 67: 217-229. gs

Hemleben, C. & Tröster, J. (1984). Campanian–Maestrichtian deepwater foraminifers from Hole 543A, Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project. 78A: 509-532. gs

Holbourn, A., Henderson, A. S. & MacLeod, N. (2013). Atlas of Benthic Foraminifera. Natural History Museum, London. 1-651. gs

Jurkiewicz, H. (1960a). Foraminifera in Czarnorzeki-Shales in the eastern part of the Silesian Unit (Carpathians). Rocznik Polskie Towarzystwo Geologiczne = Annales de la Société Géologique de Pologne. 30(3): 333-343. gs

Kaminski, M. A. & Gradstein, F. M. (2005). Atlas of Palaeogene cosmopolitan deep-water agglutinated foraminifera. Grzybowski Foundation Special Publication. (10): 1-547. gs

Samuel, O. (1977). Agglutinated foraminifers from Paleogene flysch formations in West Carpathians of Slovakia. Západné Karpaty. 2–3: 7-70. gs

Annectina grzybowskii

Taxonomy

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

References:

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