Globoconella puncticulata


Classification: pf_cenozoic -> Globorotaliidae -> Globoconella -> Globoconella puncticulata
Sister taxa: G. inflata, G. puncticulata, G. sphericomiozea, G. terminalis, G. pliozea, G. conomiozea, G. conoidea, G. miozea, G. panda, G. sp.,

Taxonomy

Citation: Globoconella puncticulata (Deshayes 1832)
Rank: species
Basionym: Globigerina puncticulata Deshayes 1832
Synonyms:
Variants:

Catalog entries: Globigerina puncticulata, Globorotalia puncticulata puncticuloides,

Type images:

Distinguishing features: Like G. sphericomiozea but more inflation of the chambers in the final whorl, more rounded periphery, and larger

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: Low trochospiral, umbilico-convex conical

Aperture: Interiomarginal umbilical-extraumbilical high arch with rim [Aze 2011, based on Kennett & Srinivasan 1983]


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

Test morphology: Test low trochospiral,flattened to slightly convex spiral side and high vaulted umbilical side, equatorial periphery gently quadrilobate, axial periphery bluntly rounded, chambers angular, conical, 4 in the final whorl increasing slowly in size; sutures on spiral side slightly curved, depressed, on umbilical side sinuous to radial, depressed; surface may be covered by dense pustules on earlier chambers, sparse on final chamber; aperture a distinct high arch bordered by a rim, interiomarginal, umbilical-extraumbilical. [Kennett & Srinivasan 1983]

Character matrix

test outline:Subquadratechamber arrangement:Trochospiraledge view:Planoconvexaperture:Umbilical-extraumbilical
sp chamber shape:Crescenticcoiling axis:Lowperiphery:N/Aaperture border:Thick lip
umb chbr shape:Subtriangularumbilicus:Narrowperiph margin shape:Broadly roundedaccessory apertures:None
spiral sutures:Flushumb depth:Shallowwall texture:Smoothshell porosity:Macroperforate: >2.5µm
umbilical or test sutures:Weakly depressedfinal-whorl chambers:4.0-4.0 N.B. These characters are used for advanced search. N/A - not applicable

Biogeography and Palaeobiology


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

[SCOR WG138]


Isotope paleobiology: Aze et al. 2011 ecogroup 3 - Open ocean thermocline. Based on light ∂13C and relatively heavy ∂18O. Sources cited by Aze et al. 2011 (appendix S3): Schneider & Kennett (1996)

Phylogenetic relations: Barbieri (1967) considered Gr. (G.) puncticulata to be closely related to Gr. crassaformis. Stainforth et al. (1975) suggested that Gr. (G.) puncticulata may be a descendant of Globorotalia subscitula, and Berggren (1977b) suggested that its ancestry is from Gr. cibaoensis. Detailed biometric studies of this lineage by Malmgren and Kennett (1981) demonstrate that Gr. (G.) puncticulata evolved in the Early Pliocene from Gr. (G.) conomiozea via Gr. (G.) sphericomiozea and in turn gave rise to Gr. (G.) inflata during the Late Pliocene. Gr. (G.) puncticulata is distinguished from Gr. (G.) inflata by having not fewer than 4 chambers in the final whorl,in exhibiting less inflation, and a smaller aperture. For more detailed information on this lineage, see Malmgren and Kennett (1981). [Kennett & Srinivasan 1983]

Most likely ancestor: Globoconella sphericomiozea - at confidence level 3 (out of 5). Data source: Kennett & Srinivasan 1983, fig. 13, Wei 1994, fig.1.
Likely descendants: Globoconella inflata;

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within PL6 [Atl.] zone (1.88-2.39Ma, top in Gelasian stage). Data source: Wei 1994 (quoted age converted to modern zone)
First occurrence (base): within PL1 [Atl.] zone (4.37-5.72Ma, base in Messinian stage). Data source: Wei 1994 (quoted age converted to modern zone)

Plot of occurrence data:

Primary source for this page: Kennett & Srinivasan 1983, p.116

References:

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

Barbieri, F. (1967). The foraminifera in the Pliocene section Vernasca-Castell Arquato including the "Piacenzian stratotype" (Piacenza Province). Soc. Italiana Sci. Nat. Milano Mem. 15: 147-163. gs

Berggren, W. A. (1977b). Late Neogene foraminiferal biostratigraphy of the Rio Grande Rise (South Atlantic). Marine Micropaleontology. 2(3): 265-313. gs

Deshayes, G. P. (1832). Encyclopedie methodique: Histoire Naturelle des Vers., Tome 2,. Agasse Imprimeur, Paris. 1-594. gs

Hornibrook, N. d. B. (1981). Globorotalia in the late Pliocene and early Pleistocene of New Zealand. New Zealand Journal of Geology and Geophysics. 24: 263-292. gs

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

Kennett, J. P. & Vella, P. (1975). Late Cenozoic planktonic foraminifera and Paleoceanography at DSDP site 284 in the cool subtropical South Pacific. Initial Reports of the Deep Sea Drilling Project. 29: 769-799. gs

Malmgren, B. A. & Kennett, J. P. (1981). Phyletic gradualism in a Late Cenozoic planktonic foraminiferal lineage; DSDP site 284, southwest Pacific. Paleobiology. 7(2): 230-240. gs

Schneider, C. E. & Kennett, J. P. (1996). Isotopic evidence for interspecies habitat differences during evolution of the Neogene planktonic foraminiferal clade Globoconella. Paleobiology. 22: 282-303. gs

Wei, K. -Y. (1987). Multivariate morphometric differentiation of chronospecies in the late Neogene planktonic foraminiferal lineage Globoconella. Marine Micropaleontology. 12: 183-202. gs

Wei, K. -Y. (1994b). Stratophenetic tracing of phylogeny using SIMCA pattern recognition technique: a case study of the late Neogene planktic foraminifera Globoconella clade. Paleobiology. 20(1): 52-65. gs


logo

Globoconella puncticulata compiled by the pforams@mikrotax project team viewed: 17-7-2019

Taxon Search:
Advanced Search

Short stable page link: http://mikrotax.org/pforams/index.php?id=104082 Go to Archive.is to create a permanent copy of this page - citation notes



Comments (0)

No comments yet. Be the first!

Add Comment

* Required information
1000
Captcha Image
Powered by Commentics