pforams@mikrotax - Globoturborotalita woodi pforams@mikrotax - Globoturborotalita woodi

Globoturborotalita woodi

Classification: pf_cenozoic -> Globigerinidae -> Globoturborotalita -> Globoturborotalita woodi
Sister taxa: G. rubescens, G. decoraperta ⟩⟨ G. apertura, G. connecta, G. druryi, G. nepenthes, G. woodi ⟩⟨ G. cancellata, G. occlusa, G. paracancellata, G. pseudopraebulloides ⟩⟨ G. barbula, G. bassriverensis, G. brazieri, G. eolabiacrassata, G. euapertura, G. gnaucki, G. labiacrassata, G. martini, G. ouachitaensis, G. sp.


Citation: Globoturborotalita woodi Jenkins 1960
taxonomic rank: Species
Taxonomic discussion:

The species is a diagnostic form in the lower Miocene of Australia and New Zealand. Jenkins (1960, 1978) used the first appearance of this species to mark the base of the lower Miocene G. woodi Zone in Australia and New Zealand. However, Spezzaferri (1994) reported G. woodi in Subzone P21a (Zone O3/4) in DSDP Hole 588C (Tasman Sea), in DSDP Holes 526A and 360, 363 (South Atlantic Ocean), and ODP Hole 709C and 714A (Indian Ocean).[Spezzaferri et al. 2018]

Jenkins (1960) proposed G. praebulloides as possible ancestor of G. woodi. Chaproniere (1992) proposed that G. woodi evolved from the warmer water species Trilobatus quadrilobatus through the loss of spiral apertures because of its possible appearance above a warming trend in the Australian region. However, since it has been recorded well below the first appearance of Globigerinoides, G. woodi appearance may be a migration event from higher latitudes where it evolved from a Globoturborotalita ancestor. [Spezzaferri et al. 2018]

Catalog entries: Globigerina woodi

Type images:

Distinguishing features:
Parent taxon (Globoturborotalita): Trochospiral test with a single, large, open umbilical aperture. Cancellate wall. 4-4½ chambers in final whorl
This taxon: Chambers symmetrically arranged around the umbilicus, with large, symmetrical, rounded umbilical aperture. Wall coarsely cancellate, low porosity.

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.


Low trochospiral, consisting of 3 whorls, globular, moderately lobulate in outline, chambers subglobular; in spiral view 3½-4 subglobular chambers in ultimate whorl, increasing rapidly in size, sutures depressed, straight; in umbilical view 3½-4 subglobular, slightly embracing chambers, increasing rapidly in size, sutures depressed, straight, umbilicus small, open, enclosed by surrounding chambers, aperture umbilical, a large, symmetrical, rounded arch, embracing the previous chambers; in edge view chambers globular, slightly embracing, initial whorl of chambers flat. [Spezzaferri et al. 2018]

Wall type:
Normal perforate, spinose, ruber/sacculifer-type wall texture, an average of 11 pores/50 μm2 test surface area. [Spezzaferri et al. 2018]

Maximum diameter of holotype 0.45 mm. [Spezzaferri et al. 2018]

Character matrix
test outline:Lobatechamber arrangement:Trochospiraledge view:Equally biconvexaperture:Umbilical
sp chamber shape:Globularcoiling axis:Low-moderateperiphery:N/Aaperture border:N/A
umb chbr shape:Globularumbilicus:Wideperiph margin shape:Broadly roundedaccessory apertures:None
spiral sutures:Weakly depressedumb depth:Deepwall texture:Cancellateshell porosity:Macroperforate: >2.5µm
umbilical or test sutures:Moderately depressedfinal-whorl chambers:4-4 N.B. These characters are used for advanced search. N/A - not applicable

Biogeography and Palaeobiology

Geographic distribution

It is very common in Australia and New Zealand, it is also present in the Gulf of Mexico, Atlantic, including the North Sea region (Hooyberghs and De Meuter, 1972), Pacific and Indian Oceans from temperate to mid-latitudes (Spezzaferri, 1994, 1995). [Spezzaferri et al. 2018]

Isotope paleobiology
Stable isotope data indicate a surface mixed-layer habitat for this species (Pearson and others, 1997). New data of Spezzaferri (unpublished) confirm the observation of Pearson and others (1997). However, Keller (1985) suggests a deeper habitat for this species. [Spezzaferri et al. 2018]

Phylogenetic relations
Globoturborotalita woodi probably evolved from G. brazieri in the late early Oligocene by developing a higher arched aperture and a more lobulate profile. [Spezzaferri et al. 2018]

Most likely ancestor: Globoturborotalita brazieri - at confidence level 3 (out of 5). Data source: .
Likely descendants: Globigerinoides neoparawoodi; Globoturborotalita apertura; Globoturborotalita connecta; Globoturborotalita decoraperta; Globoturborotalita druryi; Globoturborotalita euapertura; Sphaeroidinellopsis disjuncta; plot with descendants

Biostratigraphic distribution

Geological Range:
Notes: Lower Oligocene Zone O4 (Spezzaferri, 1994) to Plio-Pleistocene Zone PL6. The extinction of G. woodi is astronomically calibrated to 2.30 Ma (Wade and others, 2011). [Spezzaferri et al. 2018]
Last occurrence (top): in lower part of PL6 [Atl.] zone (18% up, 2.3Ma, in Gelasian stage). Data source: Wade et al. 2018
First occurrence (base): within O4 zone (28.09-29.18Ma, base in Rupelian stage). Data source: Spezzaferri et al. 2018

Plot of occurrence data:

Primary source for this page: Spezzaferri et al. 2018 - Olig Atlas chap.8 p.262;


Akers, W. H. (1955). Some planktonic foraminifera of the American Gulf Coast and suggested correlations with the Caribbean Tertiary. Journal of Paleontology. 29(4): 647-664. gs

Basov, I. A., Ciesielski, P. F., Krasheninnikov, V. A., Weaver, F. M. & Wise, S. W. (1983). Biostratigraphic and paleontologic synthesis: Deep Sea Drilling Project Leg 71, Falkland Plateau and Argentine Basin. Initial Reports of the Deep Sea Drilling Project. 71: 445-460. 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

Chaproniere, G. C. H. (1988). Globigerina woodi from the late Oligocene and early Miocene of southeastern Australia. Journal of Foraminiferal Research. 18: 105-115. gs

Chaproniere, G. C. H. (1992). The distribution and development of Late Oligocene and Early Miocene reticulate globigerines in Australia. Marine Micropaleontology. 18(4): 279-305. gs

Hooyberghs, H. J. F. & de Meuter, F. (1972). Biostratigraphy and inter-regional correlation of the Miocene deposits of Northern Belgium based on planktonic foraminifera; the Oligocene-Miocene boundary on the southern edge of the North Sea basin, Brussels. Koninklijke Vlaamse Academie voor Wetenschappen, Letteren en Schone Kunsten van België. -. gs

Jenkins, D. G. (1960). Planktonic foraminifera from the Lakes Entrance oil shaft, Victoria, Australia. Micropaleontology. 6: 345-371. gs

Jenkins, D. G. (1978). Guembelitria samwelli Jenkins, a new species from the Oligocene of the Southern Hemishere. Journal of Foraminiferal Research. 8(2): 132-137. gs

Keller, G. (1981a). Origin and evolution of the genus Globigerinoides in the Early Miocene of the northwestern Pacific, DSDP Site 292. Micropaleontology. 27(3): 293-304. gs

Keller, G. (1985). Depth stratification of planktonic foraminifers in the Miocene Ocean. In, Kennett, J. P. (ed.) The Miocene Ocean: Paleoceanography and Biogeography. GSA Memoir . 163: 1-337. gs

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

Lam, A. & Leckie, R. M. (2020a). Late Neogene and Quaternary diversity and taxonomy of subtropical to temperate planktic foraminifera across the Kuroshio Current Extension, northwest Pacific Ocean. Micropaleontology. 66(3): 177-268. gs

Li, Q. & McGowran, B. (2000). Miocene foraminifera from Lakes Entrance Oil Shaft, Gippsland, southeastern Australia. Association of Australasian Palaeontologists, Memoirs. 22: 1-142. gs

Pearson, P. N., Shackleton, N. J., Weedon, G. P. & Hall, M. A. (1997b). Multispecies planktonic foraminifer stable isotope stratigraphy through Oligocene/Miocene boundary climatic cycles, Site 926. 154, 441-450. Proceedings of the Ocean Drilling Program, Scientific Results. 154: 441-450. 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

Spezzaferri, S., Olsson, R. K., Hemleben, C., Wade, B. S. & Coxall, H. K. (2018d). Taxonomy, biostratigraphy, and phylogeny of Oligocene and Lower Miocene Globoturborotalita. 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 8): 231-268. gs

Stewart, D. R. M. , Pearson, P. N., Ditchfield, P. W. & Singano, J. M. (2004). Miocene tropical Indian Ocean temperatures: evidence from three exceptionally preserved foraminiferal assemblages from Tanzania. Journal of African Earth Sciences. 40: 173-190. 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. gs


Globoturborotalita woodi compiled by the pforams@mikrotax project team viewed: 5-12-2023

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