Globigerinatheka luterbacheri


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

Taxonomy

Citation: Globigerinatheka luterbacheri Bolli 1972
Rank: Species
Basionym: Globigerinatheka subconglobata subsp. luterbacheri
Synonyms:
Variants: lu
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 luterbacheri subsp. luterbacheri [not in catalog yet]

Type images:

Short diagnosis: 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.

NB The short diagnoses are used in the tables of daughter-taxa to act as quick summaries of the differences between e.g. species of one genus. They have initially been copied from the diagnostic characters/distinguishing features sections of the Eocene and Paleocene Atlases, they will be edited as the site is developed.

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 >5 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:Trochospiraledge view:Equally biconvexaperture:Umbilical
umb chamber shape:Globularcoiling axis:Lowperiphery:N/Aaperture border:N/A
sp chbr shape:Globularumbilicus:Narrowperiph margin shape:Broadly roundedaccessory apertures:Sutural
umbilical or test sutures:Moderately depressedumb depth:Deepwall texture:Spinoseshell porosity:Macroperforate: >2.5µm
spiral sutures:Moderately depresseddiameter mm:0.55width mm:breadth mm:
final-whorl chambers:3.0-4.0

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]

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: Eocene Atlas
First occurrence (base): within E12 zone (39.97-40.40Ma, base in Bartonian stage). Data source: Eocene Atlas

Plot of occurrence data:

Primary source for this page: Premoli Silva et al. 2006 - Atlas of Eocene Planktonic Foraminifera, chapter 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, 120. Ocean Drilling Program, College Station, Texas, 551-568 pp.

Bolli, H.M., (1972). Correlation de las estaciones JOIDES 29, 30 y 31 del Caribe con Jamaica, Venezuela y Trinidad. Memoria IV Congreso Geologico Venezolano, 3, 1315-1336 pp.

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

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

Brönnimann, P., (1952). Note on planktonic foraminifera from Danian localities of Jutland, Denmark. Eclogae Geologicae Helvetiae, 45(2): 339-341.

Brönnimann, P., (1952). Trinidad Paleocene and lower Eocene Globigerinidae. Bulletin of American Paleontology, 34(143): 1-34.

Brönnimann, P., (1952). Globigerinidae from the Upper Cretaceous (Cenomanian-Maestrichtian) of Trinidad, B. W. I. Bulletin of American Paleontology, 34(140): 1-70.

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. and Montanari, A. (Editors), The Eocene-Oligocene Boundary in the Marche-Umbria Basin (Italy). International Subcommission on Paleogene Stratigraphy, Ancona, pp. 59-80.

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

Finlay, H.J., (1939). New Zealand foraminifera: Key species in stratigraphy - no. 1. Transactions of the Royal Society of New Zealand, 68: 504-533.

Finlay, H.J., (1939). New Zealand foraminifera: Key species in stratigraphy - no. 3. Transactions of the Royal Society of New Zealand, 69(3): 309-329.

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

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.

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

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.

Nocchi, M.; Amici, E. & Premoli Silva, I., (1991). Planktonic foraminiferal biostratigraphy and paleoenvironmental interpretation of Paleogene faunas from the subantarctic transect, Leg 114. In: Ciesielski, P.F., Kristoffersen, Y. and al., e. (Editors), Proceedings of the Ocean Drilling Program, Scientific Results. Ocean Drilling Program, College Station, Texas, pp. 233-273.

Premoli Silva, I.; Wade, B.S. & Pearson, P.N., (2006). Taxonomy, biostratigraphy, and phylogeny of Globigerinatheka and Orbulinoides. In: Pearson, P.N. et al. (Editors), Atlas of Eocene Planktonic Foraminifera, Cushman Foundation Special Publication 41. Allen Press, Lawrence, Kansas, pp. 169-212.

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.

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.

Spezzaferri 1990 [sorry, not in our bibliography yet]

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.

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.

Toumarkine, M., (1983). Les Foraminifères planctoniques de l’Eocène moyen et supérieur des régions tropicales à temperées chaudes. PhD Thesis, Université Pierre et Marie Curie, Paris 6, 83-05, 1-219 pp.


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Globigerinatheka luterbacheri compiled by the pforams@mikrotax project team viewed: 20-9-2017

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