Dentoglobigerina juxtabinaiensis


Classification: pf_cenozoic -> Globigerinidae -> Dentoglobigerina -> Dentoglobigerina juxtabinaiensis
Sister taxa: D. juxtabinaiensis, D. binaiensis, D. sellii, D. tapuriensis, D. baroemoenensis, D. larmeui, D. galavisi, D. altispira, D. globosa, D. globularis, D. prasaepis, D. pseudovenezuelana, D. taci, D. tripartita, D. eotripartita, D. venezuelana, D. sp.,

Taxonomy

Citation: Dentoglobigerina juxtabinaiensis Fox & Wade 2013
Rank: Species
Synonyms:
Taxonomic discussion:  This species is distinguished from D. binaiensis (Koch) by having 4 rather than 3 chambers in the final whorl, less rapid chamber expansion and a more open umbilicus.

Catalog entries: Dentoglobigerina juxtabinaiensis

Type images:

Distinguishing features: Like D. binaiensis but with 4 rather than 3 chambers in the final whorl, less rapid chamber expansion and a more open umbilicus.

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

Character matrix

test outline:Subcircularchamber arrangement:Trochospiraledge view:Concavo-convexaperture:Umbilical
sp chamber shape:Petaloidcoiling axis:Moderateperiphery:N/Aaperture border:Thin flange
umb chbr shape:Globularumbilicus:Narrowperiph margin shape:Broadly roundedaccessory apertures:None
spiral sutures:Moderately depressedumb depth:Deepwall texture:Cancellateshell porosity:Finely Perforate: 1-2.5µm
umbilical or test sutures:Strongly depressedfinal-whorl chambers:4.0-4.0 N.B. These characters are used for advanced search. N/A - not applicable

Biogeography and Palaeobiology


Phylogenetic relations: It appears to have been descended from binaiensis and survived the extinction of that form. [Wade et al. 2018]

Most likely ancestor: Dentoglobigerina binaiensis - at confidence level 3 (out of 5). Data source: Wade et al. 2018.

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within M5 zone (15.10-16.38Ma, top in Langhian stage). Data source: Fox & Wade 2013
First occurrence (base): within M3 zone (17.54-19.30Ma, base in Burdigalian stage). Data source: Fox & Wade 2013

Plot of occurrence data:

Primary source for this page: Wade et al. 2018 - Olig Atlas chap.11 p.352;

References:

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

Chapman, F., Parr, W. J. & Collins, A. C. (1934). Tertiary foraminifera of Victoria, Australia - The Balcombian deposits of Port Phillip. part III. Linnean Society's Journal, Zoology. 38(262): 553-577. gs

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

Koch, R. (1935). Namensanderung einiger Tertiar-Foraminiferen aus Niederlandisch Ost-Indien. Eclogae Geologicae Helvetiae. 28: 557-558. gs

Krasheninnikov, V. A. & Hoskins, R. H. (1973). Late Cretaceous, Paleogene and Neogene Planktonic Foraminifera. Initial Reports of the Deep Sea Drilling Project. 20: 105-203. 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

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


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Dentoglobigerina juxtabinaiensis compiled by the pforams@mikrotax project team viewed: 22-10-2019

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Short stable page link: http://mikrotax.org/pforams/index.php?id=100078 Go to Archive.is to create a permanent copy of this page - citation notes



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