Globigerinatheka luterbacheri


Classification: pf_cenozoic -> Globigerinidae -> Globigerinatheka -> Globigerinatheka luterbacheri
Sister taxa: G. semiinvoluta, G. tropicalis, G. luterbacheri, G. euganea, G. index, G. curryi, G. barri, G. korotkovi, G. kugleri, G. mexicana, G. subconglobata, G. sp.,

Taxonomy

Citation: Globigerinatheka luterbacheri Bolli 1972
Rank: Species
Basionym: Globigerinatheka subconglobata subsp. luterbacheri
Synonyms:
Taxonomic discussion: As already noted by Bolli (1972), G. luterbacheri resembles G. euganea in general shape and maximum test size of about 0.6 mm. However, G. luterbacheri differs from G. euganea in often having more deeply incised sutures between the last chambers, overall larger and less numerous secondary apertures, and apparently a coarser surface. Bullae that may cover only part of an aperture are rare in G. euganea.
[Premoli Silva et al. 2006]

Catalog entries: Globigerinatheka subconglobata luterbacheri

Type images:

Distinguishing features: Text large, ovoid, somewhat irregular with rather incised sutures

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: The more ovoid, somewhat more irregular test and the rather incised sutures distinguish G. luterbacheri from the other large globigerinathekids. Globigerinatheka luterbacheri differs from G. kugleri in its more robust wall and more compact test of larger size, more incised sutures and more numerous secondary apertures and from G. mexicana and G. barri in the more robust wall, the longer spire, more numerous secondary apertures, more incised sutures, and distinctly larger size.
[Premoli Silva et al. 2006]

Wall type: Spinose, cancellate, rather thick and coarsely perforate; pore diameter >0.05 mm. [Premoli Silva et al. 2006]

Test morphology: Test nearly globular, sometimes elongate, 2 to 3 whorls coiled in low trochospire, initially tight then looser, becoming streptospiral in the outer whorl; chambers inflated, increasing very slowly in the first whorl, then increasing moderately and gradually in size as added, chambers in last whorl much larger with the last two tending to hemispherical, last chamber may be smaller than penultimate one; sutures depressed, almost incised, except in the first whorl; numerous secondary apertures along the depressed sutures mainly at the intersection with the last chambers, frequently covered by more or less inflated bullae of variable size. [Premoli Silva et al. 2006]

Size: According to Toumarkine (1983), G. luterbacheri may reach a very large size, up to 0.85 mm. Maximum diameter of holotype 0.55 mm; figured paratypes, 0.4 to 0.6 mm. [Premoli Silva et al. 2006]

Character matrix

test outline:Circularchamber arrangement:Envelopingedge view:Equally biconvexaperture:Umbilical
sp chamber shape:Globularcoiling axis:Lowperiphery:N/Aaperture border:N/A
umb chbr shape:Globularumbilicus:Narrowperiph margin shape:Broadly roundedaccessory apertures:Sutural
spiral sutures:Moderately depressedumb depth:Deepwall texture:Spinoseshell porosity:Macroperforate: >2.5µm
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: According to Toumarkine (1983), G. luterbacheri is common in mid latitudes off the South Atlantic and northern Tethys, but is very rare or absent in tropical regions. [Premoli Silva et al. 2006]

Isotope paleobiology: No data available. [Premoli Silva et al. 2006]

Phylogenetic relations: Globigerinatheka luterbacheri may have evolved from G. euganea. [Premoli Silva et al. 2006]

Most likely ancestor: Globigerinatheka euganea - at confidence level 3 (out of 5). Data source: Premoli Silva et al. 2006 f7.1.

Biostratigraphic distribution

Geological Range:
Notes: Middle to upper Eocene. It ranges from within Zone E12 up to the E15/ E16 boundary. [Premoli Silva et al. 2006]
Last occurrence (top): within E15 zone (34.68-35.89Ma, top in Priabonian stage). Data source: Premoli Silva et al. 2006 f7.1
First occurrence (base): within E12 zone (39.97-40.40Ma, base in Bartonian stage). Data source: Premoli Silva et al. 2006 f7.1

Plot of occurrence data:

Primary source for this page: Premoli Silva et al. 2006 - Eocene Atlas, chap. 7

References:

Berggren, W. A. (1992). Paleogene planktonic foraminifer magnetobiostratigraphy of the southern Kerguelen Plateau (sites 747-749). Proceedings of the Ocean Drilling Program, Scientific Results. 551-568. gs

Bolli, H. M. (1972b). The genus Globigerinatheka Bronnimann. Journal of Foraminiferal Research. 2(3): 109-136. gs

Brönnimann, P. (1952a). Globigerinoita and Globigerinatheka, new genera from the Tertiary of Trinidad, B.W.I. Contributions from the Cushman Foundation for Foraminiferal Research. 3(1): 25-28. gs

Coccioni, R., Monaco, P., Monechi, S., Nocchi, M. & Parisi, G. (1988). Biostratigraphy of the Eocene-Oligocene boundary at Massignano, (Ancona, Italy). In, Premoli Silva, I. , Coccioni, R. & Montanari, A. (eds) The Eocene-Oligocene Boundary in the Marche-Umbria Basin (Italy). International Subcommission on Paleogene Stratigraphy, Ancona 59-80. gs

Eckert, H. R. (1963). Die obereeozaen Globigerinen-Schiefer (Stadund Schimbergerschiefer) zwischen Pilatus und Schrattenfluh. Eclogae Geologicae Helvetiae. 56: 1001-1072. gs

Finlay, H. J. (1939b). New Zealand foraminifera: Key species in stratigraphy - no. 2. Transactions of the Royal Society of New Zealand. 69(1): 89-128. gs

Keijzer, F. G. (1945). Outline of the geology of the eastern part of the Province of Oriente, Cuba (E of 76° W.L.), with notes on the geology of other parts of the island. Publicaties uit het Geographisch en uit het Mineralogisch-Geologisch Instituut der Rijksuniversiteit te Utrecht, Physiographisch-Geologische Reeks, ser. II,. 6: 1-239. gs

Mallory, V. S. (1959). Lower Tertiary biostratigraphy of the California Coast Ranges. American Association of Petroleum Geologists, Tulsa, Oklahoma. 1-416. gs

Nishi, H. & Chaproniere, G. C. H. (1994). Eocene-Oligocene subtropical planktonic foraminifers at Site 841,. Proceedings of the Ocean Drilling Program, Scientifc Results. 135: 245-266. gs

Nocchi, M., Amici, E. & Premoli Silva, I. (1991). Planktonic foraminiferal biostratigraphy and paleoenvironmental interpretation of Paleogene faunas from the subantarctic transect, Leg 114. Proceedings of the Ocean Drilling Program, Scientific Results. 114: 233-273. gs

Premoli Silva, I. & Spezzaferri, S. (1990). Paleogene planktonic foraminifer biostratigraphy and paleoenvironmental remarks on paleogene sediments from Indian Ocean sites, Leg 115. Proceedings of the Ocean Drilling Program, Scientific Results. 115: 277-314. gs

Premoli Silva, I., Wade, B. S. & Pearson, P. N. (2006). Taxonomy, biostratigraphy, and phylogeny of Globigerinatheka and Orbulinoides. In, Pearson, P. N. , Olsson, R. K. , Hemleben, C. , Huber, B. T. & Berggren, W. A. (eds) Atlas of Eocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication. 41(Chap 7): 169-212. gs

Pujol, C. (1983). Cenozoic planktonic foraminiferal biostratigraphy of the South-Western Atlantic (Rio Grande Rise): Deep Sea Drilling Project Leg 72. Initial Reports of the Deep Sea Drilling Project. 72: 623-673. gs

Snyder, S. W. & Waters, V. J. (1985). Cenozoic planktonic foraminiferal biostratigraphy of the Goban Spur Region, Deep Sea Drilling Project Leg 80. Initial Reports of the Deep Sea Drilling Project. 80: 439-472. gs

Toumarkine, M. (1975). Middle and Late Eocene planktonic foraminifera from the northwestern Pacific Ocean: Leg 32 of the Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project. 32: 735-751. gs

Toumarkine, M. (1978). Planktonic foraminiferal biostratigraphy of the Paleogene of Sites 360 to 364 and the Neogene of Sites 362A, 363 and 364 Leg 40,. Initial Reports of the Deep Sea Drilling Project. 40: 679-721. gs

Toumarkine, M. (1983). Les Foraminifères planctoniques de l’Eocène moyen et supérieur des régions tropicales à temperées chaudes. In, p1-219 (ed.) . PhD thesis, Université Pierre et Marie Curie, Paris 6 1-219. gs


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Globigerinatheka luterbacheri compiled by the pforams@mikrotax project team viewed: 24-10-2019

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