CATALOG OF ORIGINAL DESCRIPTIONS: Globorotalia obesa Bolli 1957

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.


Higher levels: pf_cat -> G -> Globorotalia -> Globorotalia obesa
Other pages this level: << < G. miozea rifensis, G. miozea sphericomiozea, G. miroensis, G. mohleri, G. monmouthensis, G. multiloculata, G. munda, G. nagappai, G. nana pseudocontinuosa, G. nartanensis, G. naussi, G. neominutissima, G. nicobarica, G. nicolae, G. nicoli, G. obesa, G. occlusa, G. opima continuosa, G. opima nana, G. opima opima, G. orientalis, G. oscitans, G. palmerae, G. paniae, G. pentacamerata, G. perclara, G. perconigi, G. perforataminuta, G. pertenuis, G. petaliformis, G. planocompressa> >>

Globorotalia obesa

Citation: Globorotalia obesa Bolli 1957
Rank: Species
Type locality: Locality: Holotype (USNM P5673) from the type section of the Globorotalia fohsi robusta zone, Cipero type section, Trinidad, sample JS 16 (TTOC 193261); figured paratype (USNM P5674) from the type locahty of the Globorotalia fohsi fohsi zone, sample Bo 185 (TTOC 153997)
Type age (chronostrat): Globorotalia fohsi robusta zone
Type specimens: Holotype (USNM P5673) from the type section of the Globorotalia fohsi robusta zone, Cipero type section, Trinidad, sample JS 16 (TTOC 193261); figured paratype (USNM P5674) from the type locahty of the Globorotalia fohsi fohsi zone, sample Bo 185 (TTOC 153997.
Type repository: Washington; USNM

Linked specimens: USNM-5673 USNM-5674

Current identification/main database link: Globigerinella obesa (Bolli, 1957)


Original Description
Shape of test very low trochospiral ; equatorial periphery strongly lobate; axial periphery rounded. Wall calcareous, perforate, surface finely pitted, in well preserved specimens with fine, short spines. Chambers strongly inflated, spherical; 10-12, arranged in 2-2½ whorls; the 4-4½ chambers of the last whorl increase rapidly in size. Sutures on spiral side radial, strongly depressed; on umbOical side radial, strongly depressed. UmbUicus fairly wide, deep. Aperture a medium to high arch without lip or rim; interiomarginal, umbilical-extraumbilical. Coiling random.

Size: Largest diameter of holotype 0.5 mm

Extra details from original publication
Stratigraphic range (in Cipero and Lengua formations): Catapsydrax dissimilis zone to Globorotalia menardii zone.

Remarks: Globorotalia obesa, new species, dijffers from G. mayeri Cushman and Ellisor in having fewer and more inflated chambers in the last whorl.

References:

Bolli, H. M. (1957b). Planktonic foraminifera from the Oligocene-Miocene Cipero and Lengua formations of Trinidad, B.W.I. In, Loeblich, A. R. , Jr., Tappan, H., Beckmann, J. P., Bolli, H. M., Montanaro Gallitelli & E. Troelsen, J. C. (eds) Studies in Foraminifera. U.S. National Museum Bulletin. 215: 97-123. gs V O

Spezzaferri, S., Coxall, H. K., Olsson, R. K. & Hemleben, C. (2018a). Taxonomy, biostratigraphy, and phylogeny of Oligocene Globigerina, Globigerinella, and Quiltyella n. gen. 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 6): 179-214. gs V O


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Globorotalia obesa compiled by the pforams@mikrotax project team viewed: 24-7-2021

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