CATALOG OF ORIGINAL DESCRIPTIONS: Globorotalia testarugosa Jenkins 1960

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 testarugosa
Other pages this level: << < G. saphoae, G. scitula gigantea, G. scitula praescitula, G. scitula subscitula, G. scitula ventriosa, G. seigliei, G. sibaiyaensis, G. sinuososuturalis, G. spinulosa, G. strabocella, G. sturanii, G. subbotinae, G. subconica, G. suterae, G. tadjikistanensis, G. testarugosa, G. tetracamerata, G. thebaica, G. tortiva, G. tosaensis, G. traubi, G. tribulosa, G. trichotrocha, G. trinidadensis, G. troelseni, G. truncatulinoides excelsa, G. uncinata, G. uncinata carinata, G. ungulata, G. velascoensis parva, G. wartsteinensis> >>

Globorotalia testarugosa

Citation: Globorotalia testarugosa Jenkins 1960
Rank: Species
Type locality: From a depth of 1192 feet and ranges from 1200-1160 feet in a shaft about one mile northeast of Lakes Entrance township, Victoria, southeastern Australia.
Type age (chronostrat): Miocene
Type specimens: CPC4207
Type repository: Canberra, Australia; Bureau of Mineral Resources

Current identification/main database link: Globorotaloides testarugosus (Jenkins, 1960)


Original Description
Test is a low trochospiral, equatorial periphery very slightly quadrilobate. Axial periphery rounded.
Wall calcareous, coarsely perforate. Chambers inflated,flattened on the spiral side, numbering 11, with 4 1/2 in the final whorl increasing rapidly in size. Sutures on the umbilical side depressed and grooved, slightly curved; sutures on the spiral side straight, tangential, only slightly depressed. Umbilicus shallow.
Aperture a low arch, interiomarginal, extraumbilical-umbilical, with a narrow lip.

Size: Greatest diameter of holotype 0.30 mm.

Extra details from original publication
Remarks: This is a very rare species occurring in only 5 of the samples. The few specimens available for examination show two proloculus sizes: 0.03 mm. with 10-11 chambers, and 0.02 mm. with 13 chambers.
The diagnostic features of this species are its coarsely pitted wall and the straight sutures on the spiral side of the specimens with the larger proloculus. This distinctive species has a very short range but its scarcity in the shaft samples diminishes its stratigraphic usefulness.

References:

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 V O

Jenkins, D. G. (1960). Planktonic foraminifera from the Lakes Entrance oil shaft, Victoria, Australia. Micropaleontology. 6: 345-371. gs


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Globorotalia testarugosa compiled by the pforams@mikrotax project team viewed: 18-4-2021

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