Pu. praepulleniatina Bronniman and Resig (1971) - an intermediate form which links N. acostaensis with Pu. primalis [according to Kennett & Srinivasan 1983]
Catalog entries: Pulleniatina primalis, Pulleniatina praepulleniatina
Type images:Distinguishing features:
Parent taxon (Pulleniatina): Compact streptospiral test with smooth cortical coating and large slit-like aperture
This taxon: Aperture restricted to the umbilical side
Character matrix
test outline: | Subcircular | chamber arrangement: | Trochospiral | edge view: | Inequally biconvex | aperture: | Umbilical-extraumbilical |
sp chamber shape: | Crescentic | coiling axis: | Low | periphery: | N/A | aperture border: | N/A |
umb chbr shape: | Subtriangular | umbilicus: | Narrow | periph margin shape: | Broadly rounded | accessory apertures: | None |
spiral sutures: | Flush | umb depth: | Shallow | wall texture: | Smooth | shell porosity: | Macroperforate: >2.5µm |
umbilical or test sutures: | Weakly depressed | final-whorl chambers: | 4.0-5.0 | N.B. These characters are used for advanced search. N/A - not applicable |
[SCOR WG138]
Geographic distribution: Tropical to warm subtropical. Low latitudes [Aze et al. 2011, based on Kennett & Srinivasan (1983)]
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
Phylogenetic relations: Pu. primalis is distinguished from Pu. praecursor by its aperture, which is restricted to the umbilical side and does not reach the periphery of the previous whorl. This species differs from Pu. spectabilis in lacking the acutely angled periphery characteristic of that species. Pu. primalis evolved from Neogloboquadrina acostaensis. Pu. praepulleniatina, described by Brönniman and Resig (1971), represents an intermediate form, which links N. acostaensis with Pu. primalis.
Most likely ancestor: Neogloboquadrina acostaensis - at confidence level 3 (out of 5). Data source: Kennett & Srinivasan 1983, fig 22; Aze et al. 2011.
Likely descendants: Pulleniatina praecursor; Pulleniatina praespectabilis;
plot with descendants
Geological Range:
Last occurrence (top): in lower part of PL3 [Atl.] zone (28% up, 3.7Ma, in Zanclean 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).
First occurrence (base): in upper part of M13b subzone (73% up, 6.8Ma, in Messinian 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:
Primary source for this page: Kennett & Srinivasan 1983, p.200
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 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 V O Brummer, G-J. A. & Kucera, M. (2022). Taxonomic review of living planktonic foraminifera. Journal of Micropalaeontology. 41: 29-74. gs V O Kennett, J. P. & Srinivasan, M. S. (1983). Neogene Planktonic Foraminifera. Hutchinson Ross Publishing Co., Stroudsburg, Pennsylvania. 1-265. gs Norris, R. D. (1998). Planktonic foraminifer biostratigraphy: Eastern Equatorial Atlantic. Proceedings of the Ocean Drilling Program, Scientific Results. 159: 445-479. gs V O Postuma, J. A. (1971). Manual of planktonic foraminifera. Elsevier for Shell Group, The Hague. 1-406. 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. gsReferences:
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Pulleniatina primalis compiled by the pforams@mikrotax project team viewed: 2-7-2022
Short stable page link: https://mikrotax.org/pforams/index.php?id=104209 Go to Archive.is to create a permanent copy of this page - citation notes |