pforams@mikrotax - Dentoglobigerina altispira

Citation: Dentoglobigerina altispira (Cushman & Jarvis 1936)

Synonyms:

Dentoglobigerina altispira altispira (Cushman & Jarvis 1936) [e.g. Kennett & Srinivasan 1983]
Globoquadrina altispira conica Brönnimann & Resig (1971) [according to Kennett & Srinivasan 1983]

Taxonomic discussion: Dentoglobigerina altispira is a very common component of Miocene and Pliocene assemblages, first appearing in lower Miocene Subzone M1b (Kennett and Srinivasan, 1983; Chaisson and Leckie, 1993; Spezzaferri, 1994). This species descended from D. globosa in the earliest Miocene, and is distinguished from its ancestor by typically fewer chambers, a higher spire, a deeper umbilicus and slightly more angular chambers. [Wade et al. 2018]

Distinguishing features: High trochospiral. Aperture umbilical with teeth projecting into umbilicus

Description

Wall type: Non-spinose; Cancellate [Aze 2011]

Morphology: Test large, high trochospiral, four to five chambers in the final whorl, initially subspherical, latter chambers appressed, prolonged toward umbilicus ; chambers increase moderately in size as added; sutures on spiral side slightly curved to radial, depressed; on umbilical side radial, depressed; surface distinctly cancellate; umbilicus wide, open, deep; aperture umbilically restricted, with umbilical teeth projecting into the umbilicus. [Kennett & Srinivasan 1983]

Biogeography and Palaeobiology

Geographic distribution: Tropical to warm subtropical. [Kennett & Srinivasan 1983] Low latitudes [Aze et al. 2011, based on Kennett & Srinivasan (1983)]

[SCOR WG138]

Isotope paleobiology: Aze et al. 2011 ecogroup 1 - Open ocean mixed-layer tropical/subtropical, with symbionts. Based on very heavy ∂¹³C and relatively light ∂¹⁸O. Sources cited by Aze et al. 2011 (appendix S3): Pearson et al. (2001b)

Phylogenetic relations:

D. altispira altispira evolved from D. altispira globosa by developing a distinctly high trochospire and laterally compressed and umbilically prolonged chambers in the final whorl. [Kennett & Srinivasan 1983]
D. altispira shows a bias toward sinistral coiling, this is initially a weak bias (ca 65:35%) but becomes stronger though the Middle Miocene (Winter & Pearson 2001).

Most likely ancestor: Dentoglobigerina globosa - at confidence level 3 (out of 5). Data source: Kennett & Srinivasan 1983; Wade et al. 2018 f11.1.

Biostratigraphic distribution

Geological Range:
Last occurrence (top): at top of PL4 [Atl.] zone (100% up, 3.1Ma, in Piacenzian stage). Data source: Wade et al. (2011), zonal marker - but occurs earlier in the Pacific
First occurrence (base): within M1b subzone (21.12-22.44Ma, base in Aquitanian stage). Data source: Kennett & Srinivasan 1983; Wade et al. 2018 f11.1

Primary source for this page: Wade et al. 2018 - Olig Atlas chap.11 p.335; Kennett & Srinivasan 1983, p.188; Wade et al. 2018 - Olig Atlas chap.11 p.335

References:

Aze, T. et al. (2011). A phylogeny of Cenozoic macroperforate planktonic foraminifera from fossil data. Biological Reviews. 86: 900-927. gs

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

Cushman, J. A. & Jarvis, P. W. (1936). Three new foraminifera from the Miocene Bowden Marl of Jamaica. Contributions from the Cushman Laboratory for Foraminiferal Research. 12(1): 3-5. gs V O

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

Lam, A. & Leckie, R. M. (2020). 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

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

Pearson, P. N. et al. (2001a). Warm tropical sea surface temperatures in the Late Cretaceous and Eocene epochs. Nature. 413: 481-487. gs

Postuma, J. A. (1971). Manual of planktonic foraminifera. Elsevier for Shell Group, The Hague. 1-406. 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

Wade, B. S., Pearson, P. N., Olsson, R. K., Fraass, A. J., Leckie, R. M. & Hemleben, C. (2018c). Taxonomy, biostratigraphy, and phylogeny of Oligocene and Lower Miocene Dentoglobigerina and Globoquadrina. 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 11): 331-384. gs V O

Comments (2)

Page 1 of 1

Brent Wilson (New Quay, UK)

Cushman and Jarvis (1936) wrote that Globigerina altispira n. sp. has "about five" chambers in the final whorl. The type illustration definitely shows five. Fox and Wade (2013), however, limited Dentoglobigerina altispira to specimens with four chambers in the last whorl, placing those with 5-6 in D. globosa (Bolli, 1957). Wade et al. (2018) wrote that D. altispira "descended from D. globosa in the earliest Miocene, and is distinguished from its ancestor by typically fewer chambers." These authors did not, however, illustrate D. altispira. I guess we shall have to await a definitive study of Miocene planktonic forams to resolve this issue.

8th May 2020 9:20am

Jeremy Young (Tonbridge, UK)

Hi Brent - As you say the holotype definitely has 5 chambers so it is not possible to define altispira as only including specimens with 4 chambers. However, the full quote from Wade et al. 2018 (Oligocene Atlas) is "This species descended from D. globosa in the earliest Miocene, and is distinguished from its ancestor by typically fewer chambers, a higher spire, a deeper umbilicus and slightly more angular chambers." So this leaves space for the holotype to stay in altispira, but for most altispira specimens to have 4 chambers. I suspect though that you are right and the line will be revisited by the Neogene working group. Jeremy

17th June 2020 10:15pm

SMay

the images from the fox/Norris paper don't look like altispira?!

17th October 2018 10:16am

Hmm. I am not an expert but those are definitively identified specimens by expert taxonomists (and I have just checked to make sure the images have not got mixed up). It is perhaps a bit unfortunate that relatively few of the images show the characteristic side view but I think they are all altispira

17th October 2018 10:11pm

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test outline:	Lobate	chamber arrangement:	Trochospiral	edge view:	Spiroconvex	aperture:	Umbilical
sp chamber shape:	Petaloid	coiling axis:	High	periphery:	N/A	aperture border:	Teeth
umb chbr shape:	Globular	umbilicus:	Wide	periph margin shape:	Broadly rounded	accessory apertures:	None
spiral sutures:	Moderately depressed	umb depth:	Deep	wall texture:	Cancellate	shell porosity:	Finely Perforate: 1-2.5µm
umbilical or test sutures:	Strongly depressed	final-whorl chambers:	0.0-0.0	N.B. These characters are used for advanced search. N/A - not applicable

Dentoglobigerina altispira

Taxonomy

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

References:

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