pforams@mikrotax - Pulleniatina finalis pforams@mikrotax - Pulleniatina finalis

Pulleniatina finalis

Classification: pf_cenozoic -> Globorotaliidae -> Pulleniatina -> Pulleniatina finalis
Sister taxa: P. finalis, P. obliquiloculata, P. praecursor, P. primalis ⟩⟨ P. spectabilis, P. praespectabilis, P. sp.


Citation: Pulleniatina finalis Banner & Blow, 1967
taxonomic rank: species
Basionym: Pulleniatina obliquiloculata finalis
Taxonomic discussion: Considered a synonym of P. obliquiloculata by Kennett & Srinivasan (1983) and Brummer & Kucera (2022) but a discrete species by Aze et al. (2011) and Wade et al. (2011). It is retained here since Wade et al. (2011) record it as a useful stratigraphic marker. See also Pearson & Penny (2021).

Catalog entries: Pulleniatina obliquiloculata finalis

Type images:

Distinguishing features:
Parent taxon (Pulleniatina): Compact streptospiral test with smooth cortical coating and large slit-like aperture
This taxon: Like P. obliquiloculata but more involute, aperture wider, fewer chambers in final whorl (4 vs 4-5)

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.


Wall type:
Non-spinose; Smooth [Aze 2011]

Character matrix
test outline:Subcircularchamber arrangement:Trochospiraledge view:Equally biconvexaperture:Umbilical-extraumbilical
sp chamber shape:Crescenticcoiling axis:Lowperiphery:N/Aaperture border:N/A
umb chbr shape:Subtriangularumbilicus:Narrowperiph margin shape:Broadly roundedaccessory apertures:None
spiral sutures:Flushumb depth:Shallowwall texture:Smoothshell porosity:Macroperforate: >2.5µm
umbilical or test sutures:Flushfinal-whorl chambers:4-4 N.B. These characters are used for advanced search. N/A - not applicable

Biogeography and Palaeobiology

Geographic distribution

Low latitudes [Aze et al. 2011, based on This study]

[SCOR WG138]

Isotope paleobiology
Aze et al. 2011 ecogroup 3 - Open ocean thermocline. Based on comparison with other species of the genus

Most likely ancestor: Pulleniatina obliquiloculata - at confidence level 1 (out of 5). Data source: P. finalis was considered to have evolved from or to be a variant of P. obliquiloculata by Banner & Blow (1967), Kennett & Srinivasan (1983), and Chaisson & Pearson (1997). Aze et al. (2011), however, record the probable ancestor as P. spectabilis but without citing any supporting evidence..

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Non-extinct palaeontological taxon. Data source: Pearson & Penny 2021, Brummer & Kucera 2022: The morphotype occurs at the present day but is formed by the species T. obliquiloculata , so this taxon is not used by biologists
First occurrence (base): in upper part of PL6 [Atl.] zone (67% up, 2Ma, in Gelasian stage). Data source: Wade et al. (2011), additional event; position within zone determined by linear interpolation from data in table 1 of Wade et al. (2011).

Plot of occurrence data:


Aze, T. et al. (2011). A phylogeny of Cenozoic macroperforate planktonic foraminifera from fossil data. Biological Reviews. 86: 900-927. gs

Banner, F. T. & Blow, W. H. (1967). The origin, evolution and taxonomy of the foraminiferal genus Pulleniatina Cushman, 1927. Micropaleontology. 13(2): 133-162. gs

Bolli, H. M. & Saunders, J. B. (1985). Oligocene to Holocene low latitude planktic foraminifera. In, Bolli, H. M., Saunders, J. B. & Perch-Neilsen, K. (eds) Plankton Stratigraphy. Cambridge University Press, Cambridge, UK 155-262. gs

Brummer, G-J. A. & Kucera, M. (2022). Taxonomic review of living planktonic foraminifera. Journal of Micropalaeontology. 41: 29-74. gs

Chaisson, W. P. & Pearson, P. N. (1997). Planktonic foraminifer biostratigraphy at Site 925: Middle Miocene–Pleistocene. Proceedings of the Ocean Drilling Program, Scientific Results. 154: 3-31. gs

Kennett, J. P. & Srinivasan, M. S. (1983). Neogene Planktonic Foraminifera. Hutchinson Ross Publishing Co., Stroudsburg, Pennsylvania. 1-265. gs

Pearson, P. N. & Penny, L. (2021). Coiling directions in the planktonic foraminifer Pulleniatina: A complex eco-evolutionary dynamic spanning millions of years. PLoS One. 16: 360-. gs

Wade, B. S., Pearson, P. N., Berggren, W. A. & Pälike, H. (2011). Review and revision of Cenozoic tropical planktonic foraminiferal biostratigraphy and calibration to the geomagnetic polarity and astronomical time scale. Earth-Science Reviews. 104: 111-142. gs


Pulleniatina finalis compiled by the pforams@mikrotax project team viewed: 16-6-2024

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