Catalog - Globigerina boweri

CATALOG OF ORIGINAL DESCRIPTIONS: Globigerina boweri 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 boweri
Other pages this level: << < G. baconica, G. bacuana, G. bakeri, G. balchanensis, G. baroemoenensis, G. baroemoenensis quadrata, G. bathoniana, G. baylissi, G. belli, G. bermudezi, G. bilobata, G. binaiensis, G. bolivariana pannonica, G. bollii, G. bollii lentiana, G. boweri, G. bradyi, G. bramlettei, G. brazieri, G. brevis, G. brevispira, G. bulbosa, G. bulbosa trisphaera, G. bulliformis, G. bulloides, G. bulloides borealis, G. bulloides bronnresigorum, G. bulloides compacta, G. bulloides cryptomphala, G. bulloides extensa, G. bulloides incrusta> >>

Globigerina boweri

Citation: Globigerina boweri Bolli 1957
Rank: Species
Type specimens: Holotype :(USNM P5711); Figured paratype (USNM P5712)
Type locality: Holotype (USNM P5711) from the Hantkenina aragonensis zone, Navet formation; outcrop on left side of right branch of Nariva River, about 450 feet from its junction, Central Range, Trinidad (coordinates N:314350 links; E:487360 links) ; sample K 9077 (TTOC 178166). Figured paratype (USNM P5712) from the Hantkenina aragonensis zone, Navet formation; in small ravine between mile posts 12 1/4 and 12 1/2 of the Brasso-Tamana Road and the Navet River, Central Range (see text fig. 25) ; sample HGK 8820 (TTOC 177760).
Type repository: Washington; USNM

Linked specimens: USNM-5712 USNM-5711

Current identification:

Original Description

Shape of test low trochospiral; equatorial periphery distinctly lobate (trilobate); axial periphery rounded. Wall calcareous, perforate, surface very finely pitted. Chambers spherical, early ones somewhat compressed and slightly subangular; about twelve, arranged in about 2 1/2_ whorls; the 3 to 3 1/2 chambers of the last whorl increase rapidly in size. Sutures on spiral side in early stage radial to slightly curved, in the late stage radial or oblique, depressed; sutures on umbilical side radial, depressed. Umbilicus narrow. Aperture a distinct arch, commonly with a short lip or rim; interiomarginal, umbilical, with a tendency to become umbilical-extraumbilical. Coiling predominantly dextral (90% or more) in the Hantkenina aragonensis and Globerapsis kugleri zones, Navet formation.

Largest diameter of holotype (fig. 1a-c) 0.4 mm.

The species is named for Mr. T. H. Bower, senior exploitation geologist of The Trinidad Oil Company.

Extra details from original publication
Stratigraphic range: Hantkenina aragonensis zone to Globigerapsis kugleri zone, Navet formation.

Remarks: Globigerina boweri, new species, differs from G. linaperta Finlay in having a higher arched
aperture which has the tendency to be slightly extraumbilical in position. Especially the earlier chambers
are somewhat compressed which gives them a slightly subangular aspect.

Editors' Notes


Bolli, H. M. (1957a). Planktonic foraminifera from the Eocene Navet and San Fernando formations 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: 155-172. gs V O

Bolli, H. M., Loeblich, A. R. & Tappan, H. (1957). Planktonic foraminiferal families Hantkeninidae, Orbulinidae, Globorotaliidae and Globotruncanidae. 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: 3-50. gs V O

Pearson, P. N., Premec-Fucek, V. & Premoli Silva, I. (2006b). Taxonomy, biostratigraphy, and phylogeny of Eocene Turborotalia. 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 15): 433-460. gs V O


Globigerina boweri compiled by the pforams@mikrotax project team viewed: 8-12-2022

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