Pulleniatina praespectabilis


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

Taxonomy

Citation: Pulleniatina praespectabilis Brönnimann & Resig 1971
Rank: species
Basionym: Pulleniatina spectabilis praespectabilis

Catalog entries: Pulleniatina spectabilis praespectabilis

Type images:

Distinguishing features: Like P. primalis but more plano-convex with distinct, rounded, peripheral shoulder

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.

Description


Diagnostic characters: Convexly rounded initial portion of the trochospire as seen in lateral view, with a well rounded pseudo keel

Aperture: Extraumbilical medium to low arch without lip or rim [Aze 2011, based on Bolli & Saunders 1985]


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

Character matrix

test outline:Lobatechamber arrangement:Trochospiraledge view:Planoconvexaperture:Umbilical-extraumbilical
sp chamber shape:Crescenticcoiling axis:Lowperiphery:N/Aaperture border:N/A
umb chbr shape:Subtriangularumbilicus:Narrowperiph margin shape:Narrowly roundedaccessory apertures:None
spiral sutures:Flushumb depth:Shallowwall texture:Smoothshell porosity:Macroperforate: >2.5µm
umbilical or test sutures:Flushfinal-whorl chambers:5.0-6.0 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 Bolli & Saunders (1985)]

[SCOR WG138]


Isotope paleobiology: Aze et al. 2011 ecogroup 3 - Open ocean thermocline. Based on light ∂13C and relatively heavy ∂18O. Sources cited by Aze et al. 2011 (appendix S3): this study

Most likely ancestor: Pulleniatina primalis - at confidence level 2 (out of 5). Data source: Kennett & Srinivasan 1983, fig 22 do not separate P. spectabilis praespectablis but record spectabilis as evolving from primalis. NB Aze et al. (2011) assign P. obliquiloculata as ancestor of P. praespectabilis but without explanation..
Likely descendants: Pulleniatina spectabilis;

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within PL1 [Atl.] zone (4.37-5.72Ma, top in Zanclean stage). Data source: Aze et al. 2011
First occurrence (base): within PL1 [Atl.] zone (4.37-5.72Ma, base in Messinian stage). Data source: Aze et al. 2011

Plot of occurrence data:

References:

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

Brönnimann, P. & Resig, J. (1971). A Neogene globigerinacean biochronologic time-scale of the southwestern Pacific. Initial Reports of the Deep Sea Drilling Project. 7(2): 1235-1469. gs

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


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Pulleniatina praespectabilis compiled by the pforams@mikrotax project team viewed: 13-12-2019

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Short stable page link: http://mikrotax.org/pforams/index.php?id=104208 Go to Archive.is to create a permanent copy of this page - citation notes



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