Globigerinita


Classification: pf_cenozoic -> Globigerinitidae -> Globigerinita
Sister taxa: Dipsidripella, Globigerinatella, Globigerinita, Mutabella, Tenuitella,
Daughter taxa: (blue => in age window 0-300Ma)

Low trochospire
Like Ga. glutinata but with supplementary apertures on the spiral side
High trochospire, compact shell outline
High trochospire, lobate shell outline

Taxonomy

Citation:

Genus Globigerinita Brönnimann, 1951

Rank: genus
Type species: Globigerinita naparimaensis Brönnimann, 1951.
Synonyms:
Taxonomic discussion: Brönnimann’s (1951) original concept of Globigerinita and Family Globigerinitidae was based on the presence of an umbilical bulla with multiple infralaminal openings (see also Bolli and others, 1957:37). This included his species Globigerinita naparimaensis along with other macroperforate forms such as Catapsydrax that are now regarded as unrelated. The genus Globigerinita was used in this sense (essentially a form-genus) by several workers including Brönnimann and Resig (1971) and Blow (1979). However Parker (1962:252-253) drew attention to the distinctive wall texture of Globigerinita, which she described as “smooth, or finely hispid, and nonspinose”. Parker took the bold step of uniting in the genus Brönnimann’s (1951) Globigerinita naparimaensis with Bolli’s (1957) Globigerina juvenilis, and two modern species that had been described in the nineteenth century, Globigerina glutinata Egger, 1893 and Pylodexia uvula Ehrenberg, 1861. She also described a new species from Holocene sediments, Globigerinita iota (now placed in the closely related genus Tenuitella). She clearly stated her opinion that Globigerinita constitutes a separate group from the other planktonic foraminifera and was of uncertain family affiliation (‘Incertae Familiae’) possibly “developed independently from some other ancestry” (Parker, 1962:244). Fleisher (1974:1021-1022) used high quality SEM images to illustrate and describe the microperforate wall and followed Parker in suggesting that the genus should be restricted to forms with this distinctive wall texture. [Pearson et al. 2018]

Loeblich and Tappan (1957) distinguished what they regarded as forms with a ‘true’ bulla from forms with a final chamber (that may have multiple openings) positioned over the umbilicus. They revised their concept of Globigerinita to include forms with an encroaching final chamber and erected a new genus and species, Tinophodella ambitacrena, for what they regarded as ‘truly’ bullate forms, using one of Brönnimann’s paratypes of Globigerinita naparimaensis to typify their genus and species. We do not follow the distinction between ‘true’ bullae and encroaching final chambers, hence we regard Tinophodella as a synonym of Globigerinita (see also Parker, 1962:246). [Pearson et al. 2018]

Catalog entries: Globigerinita; Tinophodella;

Type images:

Distinguishing features: Umbilical aperture, often bulla:

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: Distinguished from other globigeriniform genera (e.g., Globigerina, Globoturborotalita, Subbotina) by its nonspinose, microperforate glutinata-type wall. Distinguished from Dipsidripella, Mutabella, and most Tenuitella by its intraumbilical aperture. Distinguished from Globigerinatella by lacking multiple superimposed bullae. Intermediates between Tenuitella munda and Globigerinita glutinata are common and should be distinguished by the intra- or intra-extraumbilical apertural position. [Pearson et al. 2018]

Wall type:

See under Globigerinita glutinata.

Biogeography and Palaeobiology


Geographic distribution: Global.

Phylogenetic relations: Genus evolved from Tenuitella in the lower Oligocene (Jenkins, 1965) and is extant. [Pearson et al. 2018]

Most likely ancestor: Tenuitella - at confidence level 3 (out of 5). Data source: Kennett & Srinivasan 1983; Pearson et al. 2018.

Biostratigraphic distribution

Geological Range:
Notes: Lower Oligocene to Recent.
Last occurrence (top): Extant Data source: Total of range of species in this database
First occurrence (base): in lower part of Rupelian Stage (31% up, 32.1Ma, in Rupelian stage). Data source: Total of range of species in this database

Plot of occurrence data:

Primary source for this page: Pearson et al. 2018 - Olig Atlas chap.16 p.436; Kennett & Srinivasan 1983, p.223

References:

Bolli, H.M., (1957). Planktonic foraminifera from the Oligocene-Miocene Cipero and Lengua formations of Trinidad, B.W.I. In: Loeblich, A.R., Jr. et al. (Editors), Studies in Foraminifera: U.S. National Museum Bulletin 215. U.S. Government Printing Office, Washington, DC, pp. 97-123.

Bolli, H.M.; Loeblich, A.R. & Tappan, H., (1957). Planktonic foraminiferal families Hantkeninidae, Orbulinidae, Globorotaliidae and Globotruncanidae. In: Loeblich, A.R., Jr. et al. (Editors), Studies in Foraminifera, U.S. National Museum Bulletin 215. U.S. Government Printing Office, Washington, DC, pp. 3-50.

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

Brönnimann, P., (1951). Globigerinita naparimaensis n. gen., n. sp., from the Miocene of Trinidad, B. W. I. Contributions from the Cushman Foundation for Foraminiferal Research, 2(1): 16-18.

Egger, J.G., (1893). Foraminiferen aus Meeresgrundproben, gelothet von 1874 bis 1876 von S. M. Sch. Gazelle. Abhandlungen der k. bayer. Akademie der Wiss. II. Cl., 18(2): 195-457.

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. K. Preuss. Akad. Wiss. Berlin, Monatsber.: +206+;.

Fleisher, R.L., (1974). Cenozoic planktonic foraminifera and biostratigraphy, Arabian Sea, Deep Sea Drilling Project, Leg 23A. Initial Reports of the Deep Sea Drilling Project, 23: 1001-1072.

Jenkins, D.G., (1965). Planktonic Foraminiferal zones and new taxa from the Danian to lower Miocene of New Zealand. New Zealand Journal of Geology and Geophysics, 8(6): 1088-1126.

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

Loeblich, A.R. & Tappan, H., (1957). The new planktonic foraminiferal genus Tinophodella, and an emendation of Globigerinita Bronnimann. Journal of the Washington Academy of Sciences., 47(4): 112-116.

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

Pearson, P.N.; Wade, B.S. & Huber, B.T., (2018). Taxonomy, biostratigraphy, and phylogeny of Oligocene Globigerinitidae (Dipsidripella, Globigerinita, and Tenuitella). In: Wade, B.S. et al. (Editors), Atlas of Oligocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research Special Pulbication. 46, pp. 429-459.


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Globigerinita compiled by the pforams@mikrotax project team viewed: 18-10-2018

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