Classification: pf_cenozoic -> Globigerinidae -> Ciperoella
Sister taxa: Beella, Globigerina, Globigerinella, Protentella, Quiltyella, Ciperoella, Globigerinoides, Globigerinoidesella, Globoturborotalita, Orbulina, Praeorbulina, Sphaeroidinella, Sphaeroidinellopsis, Trilobatus, Turborotalita, Dentoglobigerina, Globoquadrina, Catapsydrax, Clavatorella, Paragloborotalia, Protentelloides, Eoglobigerina, Globigerinatheka, Globorotaloides, Guembelitrioides, Orbulinoides, Parasubbotina, Pseudoglobigerinella, Subbotina,
Daughter taxa: (blue => in age window 0-800Ma)
Like C. ciperoensis but less lobulate peripheral outline, more compact form and a greater rate of chamber size increase
Like C. ciperoensis but smaller,; chambers squared off / wedge-shaped; sutures distinctly depressed; large umbilical aperture.
Test low trochospiral, globular, lobulate, umbilicus open; 5 chambers in final whorl; aperture umbilical;
Like C. ciperoensis but with larger, more globular, test, larger umbilicus and higher trochospire. 


Citation: Ciperoella Olsson and Hemleben, in Olsson et al. 2018
Rank: genus
Type species: Globigerina ciperoensis Bolli, 1954.
Taxonomic discussion: Ciperoella is a common form in the Oligocene that has been regarded by workers as a species of Globigerina. However, it does not have the wall texture of Globigerina. Hence, the naming of a new genus.  [Olsson et al. 2018]

Catalog entries: Ciperoella

Distinguishing features: Like Globoturborotalita, but with distinctive reticulate wall, and 4½-5 chambers in final whorl

NB These concise distinguishing features statements are used in the tables of daughter-taxa to act as quick summaries of the differences between e.g. species of one genus.
They are being edited as the site is developed and comments on them are especially welcome.


Diagnostic characters: Ciperoella n. gen. has an underlying ruber/sacculifer wall with elongate parallel ridges and short incomplete cross ridges, a wall texture like that in the nonspinose Neogloboquadrina. Porosity ranges from about 25-60 pores per 50 μm2 area. Several species are typically small in size (Globoturborotalita, to which a number of species discussed here have been previously assigned, by the distinctive reticulate nature of the wall and on average ½ to 1 more chamber in the final whorl. [Olsson et al. 2018]

Wall type: Normal perforate, spinose, Neogloboquadrina-type wall texture with underlying ruber/sacculifer or sacculifer wall with elongate parallel ridges. Pore concentrations range from around 25-60 pores/50 μm2 test surface area and pore diameters from around 0.9-2.5 μm [Olsson et al. 2018]

Test morphology: Test low trochospiral, lobulate in outline, chambers globular to ovoid. In the final whorl, 4½-5 chambers; aperture umbilical bordered by a thin rim. [Olsson et al. 2018]

Biogeography and Palaeobiology

Geographic distribution:

Isotope paleobiology:

Phylogenetic relations:

Similar species:

Most likely ancestor: Globoturborotalita - at confidence level 3 (out of 5). Data source: Olsson et al. 2018 f7.1.

Biostratigraphic distribution

Geological Range:
Notes: Upper Eocene to lower Miocene. [Olsson et al. 2018]
Last occurrence (top): in lower part of Langhian Stage (40% up, 15.1Ma, in Langhian stage). Data source: Total of range of species in this database
First occurrence (base): in upper part of Priabonian Stage (76% up, 34.8Ma, in Priabonian stage). Data source: Total of range of species in this database

Plot of occurrence data:

Primary source for this page: Olsson et al. 2018 - Olig Atlas chap.7 p.217


Bolli, H. M. (1954). Note on Globigerina concinna Reuss 1850. Contributions from the Cushman Foundation for Foraminiferal Research. 5(1): 1-3. gs V O

Olsson, R. K., Hemleben, C., Coxall, H. K. & Wade, B. S. (2018). Taxonomy, biostratigraphy, and phylogeny of Oligocene Ciperoella. In, Wade, B. S. , Olsson, R. K. , Pearson, P. N. , Huber, B. T. & Berggren, W. A. (eds) Atlas of Oligocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication. 46(Chap 7): 215-230. gs V O


Ciperoella compiled by the pforams@mikrotax project team viewed: 27-9-2020

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