Catalog - Globigerina spiralis

CATALOG OF ORIGINAL DESCRIPTIONS: Globigerina spiralis 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 -> Globigerina -> Globigerina spiralis
Other pages this level: << < G. santamariaensis, G. sastrii, G. scabrosa, G. scalena, G. schachdagica, G. scobinata, G. seminolensis, G. seminulina, G. semivera, G. siakensis, G. simulans, G. siphonifera, G. soldadoensis, G. soldadoensis angulosa, G. spinuloinflata, G. spiralis, G. spirata, G. stainforthi, G. stainforthi Hofker, G. steiningeri, G. stonei, G. subcorpulenta, G. subcretacea, G. subcretacea Chapman, G. subdigitata, G. subsphaerica, G. subtarchanensis, G. subtriloculinoides, G. supracretacea, G. taminensis, G. tarchanensis> >>

Globigerina spiralis

Citation: Globigerina spiralis Bolli 1957
Rank: Species
Type specimens: Holotype (USNM P5030) from west side of railway track, south of the Pointe-a-Pierre railway station, about 500 feet from the level crossing of Station Road, Pointe-a-Pierre, Trinidad (coordinates N: 259200 links; E:362900 links), sample KR 23575 (TLL 178894).
Type locality: Globorotalia uncinata Zone, Lower Lizard Springs Formation, Trinidad
Type repository: Washington; USNM

Linked specimens: USNM-5030

Current identification/main database link: Eoglobigerina spiralis (Bolli 1957)


Original Description

Shape of test medium to high trochospiral, biconvex, spiral side distinctly convex, umbilical side less so; equatorial periphery lobate; axial periphery rounded. Wall calcareous, perforate, surface smooth. Chambers inflated, globular or slightly compressed laterally; about 15, arranged in 3 whorls; the 5-6 chambers of the last whorl increase moderately in size. Sutures on spiral side radial or slightly curved, depressed; on umbilical side radial, depressed. Umbilicus narrow, open. Apertures distinct arches with faint lips, interiomarginal, umbilical; that of last chamber in some specimens tend to an extraumbilical-umbilical position. Coiling random.

Size:
Largest diameter of holotype 0.28 mm.

Etymology:

Extra details from original publication
Glohorotalia uncinata zone, Lizard Springs formation.

Editors' Notes

References:

Bolli, H. M. (1957d). The genera Globigerina and Globorotalia in the Paleocene-Lower Eocene Lizard Springs Formation of Trinidad. 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: 61-82. gs V O

Olsson, R. K., Hemleben, C., Berggren, W. A. & Huber, B. T. (1999). Atlas of Paleocene Planktonic Foraminifera. Smithsonian Institution Press, Washington, DC. 1-252. gs


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Globigerina spiralis compiled by the pforams@mikrotax project team viewed: 30-9-2022

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Short stable page link: https://mikrotax.org/pforams/index.php?id=130680 Go to Archive.is to create a permanent copy of this page - citation notes



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