Globigerinita uvula


Classification: pf_cenozoic -> Globigerinitidae -> Globigerinita -> Globigerinita uvula
Sister taxa: G. glutinata, G. parkerae, G. minuta, G. uvula, G. sp.,

Taxonomy

Citation: Globigerinita uvula (Ehrenberg, 1861)
Rank: species
Basionym: Pylodexia uvula
Synonyms:

(Note: this is a living species; we restrict this synonymy list to references that are relevant to Oligocene to lower Miocene occurrences. - Pearson et al. 2018)

Taxonomic discussion:

This species is common in the Neogene but also occurs rarely in the Oligocene (Quilty, 1976; Kennett and Srinivasan, 1983; van Eijden and Smit, 1991; Spezzaferri, 1994; Pearson, 1995). We defer detailed treatment to future works on modern and Neogene taxonomy. [Pearson et al. 2018]

Catalog entries: Pylodexia uvula, Globigerina bradyi

Type images:

Distinguishing features: High trochospire, lobate shell outline

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: Globigerinita uvula is distinguished from Globigerinita glutinata by its high to very high trochospiral coiling (Parker, 1962). [Pearson et al. 2018]

Wall type: Microperforate, smooth with pustules (glutinata-type). [Pearson et al. 2018]

Test morphology: High to very high trochospiral, primary aperture intra-extraumbilical, a broad low arch with a fine lip of constant thickness; 3-3½ globular chambers in final whorl; umbilical and spiral sutures incised, radial or slightly curved. The final chamber may have a pointed ‘sacculiferid’ shape. [Pearson et al. 2018]

Size: Mostly small (150-250 μm). [Pearson et al. 2018]

Character matrix

test outline:Lobatechamber arrangement:Trochospiraledge view:Equally biconvexaperture:Umbilical
sp chamber shape:Globularcoiling axis:Highperiphery:N/Aaperture border:Thin lip
umb chbr shape:Globularumbilicus:Narrowperiph margin shape:Broadly roundedaccessory apertures:N/A
spiral sutures:Weakly depressedumb depth:Deepwall texture:Smoothshell porosity:Microperforate: <1µm
umbilical or test sutures:Moderately depressedfinal-whorl chambers:3.0-4.0 N.B. These characters are used for advanced search. N/A - not applicable

Biogeography and Palaeobiology


Geographic distribution: Global. Note that Spezzaferri (1994:62) suggested that uvula was restricted to the South Atlantic Ocean in the Oligocene but occurrences are known in the Indian (van Eijden and Smit, 1991) and Pacific (Quilty, 1976; Pearson, 1995) Oceans.[Pearson et al. 2018]
Subpolar to tropical, common in temperate and subpolar assemblages. [Kennett & Srinivasan 1983]
In modern oceans an abundant, temperate water, species [SCOR WG138]

Isotope paleobiology: No data available. [Pearson et al. 2018]

Phylogenetic relations:

Descended from Globigerinita glutinata in the Oligocene (cf. Spezzaferri, 1994). [Pearson et al. 2018]

Molecular Genotypes recognised (data from PFR2 database, June 2017. References: André et al. 2014; Ujiié & Lipps 2009; Stewart et al. 2001).

Most likely ancestor: Globigerinita glutinata - at confidence level 3 (out of 5). Data source: Spezzaferri, 1994; Pearson et al. 2018.

Biostratigraphic distribution

Geological Range:
Notes:

The lowest recorded occurrence is in upper Zone O5 (Quilty, 1976:662; near the top of Zone N2). It becomes more common towards the upper part of the Oligocene.

[Pearson et al. 2018]
Last occurrence (top): Extant Data source: present in the plankton (SCOR WG138)
First occurrence (base): within O5 zone (26.93-28.09Ma, base in Chattian stage). Data source: Pearson et al. 2018

Plot of occurrence data:

Primary source for this page: Pearson et al. 2018 - Olig Atlas chap.16 p.442; Kennett & Srinivasan 1983, p.224

References:

André, A. et al. (2014). SSU rDNA Divergence in Planktonic Foraminifera: Molecular Taxonomy and Biogeographic Implications. PLoS One. 9: e104641-. gs

Chaisson, W. P. & Leckie, R. M. (1993). High-resolution Neogene planktonic foraminifer biostratigraphy of Site 806, Ontong Java Plateau (Western Equatorial Pacific). Proceedings of the Ocean Drilling Program, Scientific Results. 130: 137-178. gs

Ehrenberg, C. G. (1861). Elemente des tiefen Meeresgrundes in Mexikanischen Golfstrome bei Florida: Ober die Tiefgrund-Verhaltnisse des Oceans am Eingange der Davisstrasse und bei Island. Monatsberichte der Koniglichen Preufs. Akademie der Wissenschaften zu Berlin. +206+;-. gs

Fox, L. R. & Wade, B. S. (2013). Systematic taxonomy of early–middle Miocene planktonic foraminifera from the equatorial Pacific Ocean: Integrated Ocean Drilling Program, Site U1338. Journal of Foraminiferal Research. 43: 374-405. gs

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

Loeblich, A. & Tappan, H. (1994). Foraminifera of the Sahul shelf and Timor Sea. Cushman Foundation for Foraminiferal Research, Special Publication. 31: 1-661. gs

Norris, R. D. (1998). Planktonic foraminifer biostratigraphy: Eastern Equatorial Atlantic. Proceedings of the Ocean Drilling Program, Scientific Results. 159: 445-479. gs

Parker, F. L. (1962). Planktonic foraminiferal species in Pacific sediments. Micropaleontology. 8(2): 219-254. gs

Pearson, P. N. (1995). Planktonic foraminifer biostratigraphy and the development of pelagic caps on guyots in the Marshall Islands group. Proceedings of the Ocean Drilling Program, Scientific Results. 144: 21-59. gs

Pearson, P. N., Wade, B. S. & Huber, B. T. (2018c). Taxonomy, biostratigraphy, and phylogeny of Oligocene Globigerinitidae (Dipsidripella, Globigerinita, and Tenuitella). 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 16): 429-458. gs

Quilty, P. G. (1976). Planktonic foraminifera DSDP Leg 34, Nazca Plate. Initial Reports of the Deep Sea Drilling Project. 34: 629-703. gs

Spezzaferri, S. (1994). Planktonic foraminiferal biostratigraphy and taxonomy of the Oligocene and lower Miocene in the oceanic record. An overview. Palaeontographia Italica. 81: 1-187. gs

Stewart, I. A., Darling, K. F., Kroon, D., Wade, C. M. & Troelstra, S. R. (2001). Genotypic variability in subarctic Atlantic planktic foraminifera. Marine Micropaleontology. 43: 143-153. gs

Ujiié, Y. & Lipps, J. H. (2009). Cryptic diversity in planktonic foraminifera in the northwest Pacific ocean. Journal of Foraminiferal Research. 39: 145-154. gs

van Eijden, A. J. M. & Smit, J. (1991). Eastern Indian Ocean Cretaceous and Paleogene quantitative biostratigraphy. Proceedings of the Ocean Drilling Program, Scientific Results. 121: 77-123. gs


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Globigerinita uvula compiled by the pforams@mikrotax project team viewed: 24-10-2019

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