Catalog - Globorotaloides suteri Catalog - Globorotaloides suteri

CATALOG OF ORIGINAL DESCRIPTIONS: Globorotaloides suteri 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 -> Globorotaloides -> Globorotaloides suteri
Other pages this level: G. atlanticus, G. carcoselleensis, G. eovariabilis, G. falconarae, G. indigena anavenezuelana, G. indigena redissimilis, G. parvulus anasuteri, G. parvulus lateraliaperturus, G. quadrocameratus, G. suteri, G. suteri relizensis, G. trema, G. variabilis

Globorotaloides suteri

Citation: Globorotaloides suteri Bolli 1957
taxonomic rank: Species
Type specimens: Holotype P5654; figured paratypes P5655a-d
Type age (chronostrat): Globigerina ampliapertura zone
Type locality: Holotype (USNM P5654) and figured paratypes (USNM P5655a-d) from the Globigerina ampliapertura zone, Cipero type section, Trinidad, sample Bo 314A (TTOC 215658).
Type repository: Washington; USNM

Linked specimens: USNM-5654 USNM-5655 USNM-5655 USNM-5656 USNM-5655 USNM-5655

Current identification/main database link: Globorotaloides suteri Bolli, 1957

Original Description

Shape of test low trochospiral, biconvex; equatorial periphery lobate, in small specimens slightly elongate; axial periphery rounded. Wall calcareous, perforate, surface finely cancellate. Chambers ovate to spherical; about 11-14, arranged in 2-2½ whorls; the 4-5 chambers of the last whorl increase fairly rapidly in size. Sutures on spiral side slightly curved to radial, depressed; on umbilical side radial, depressed. Umbilicus fairly wide, open in immature specimens, in mature specimens partly or completely covered by bulla-like chamber. Aperture a slit or low arch ; interiomarginal, umbilicalextraumbilical in early stage, later becoming interiomarginal, umbilical, which in mature specimens becomes covered by a bulla-like chamber with usually one, rarely two or more infralaminal apertures. Coiling random or some predominance for dextral. .

Largest diameter of holotype 0.35 mm

The species is named for Dr. H. H. Suter in recognition of his contribution to the geology of Trinidad.

Extra details from original publication
Stratigraphic range (in Cipero formation): Most common and typical in the Globigerina ampliapertura zone, ranging to the Globigerinatella insueta zone.

Remarks: Globorotaloides suteri, new species, is distinguished from G. variabilis, new species, by the more inflated early chambers, less curved sutures and fewer chambers.


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

Coxall, H. K. & Spezzaferri, S. (2018). Taxonomy, biostratigraphy, and phylogeny of Oligocene Catapsydrax, Globorotaloides, and Protentelloides. 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 4): 79-124. gs

Olsson, R. K., Pearson, P. N. & Huber, B. T. (2006c). Taxonomy, biostratigraphy, and phylogeny of Eocene Catapsydrax, Globorotaloides, Guembelitrioides, Paragloborotalia, Parasubbotina, and Pseudoglobigerinella n. gen. In, Pearson, P. N., Olsson, R. K., Hemleben, C., Huber, B. T. & Berggren, W. A. (eds) Atlas of Eocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication . 41(Chap 5): 67-110. gs O


Globorotaloides suteri compiled by the pforams@mikrotax project team viewed: 18-4-2024

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