Catalog - Globoquadrina tripartita tricamerata

CATALOG OF ORIGINAL DESCRIPTIONS: Globoquadrina tripartita subsp. tricamerata Fordham 1986

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 -> Globoquadrina -> Globoquadrina tripartita tricamerata
Other pages this level: G. altispira conica, G. altispira globosa, G. asanoi, G. dehiscens praedehiscens, G. globularis, G. himiensis, G. kagaensis, G. langhiana, G. larmeui, G. obesa, G. pachyderma pacifica, G. palmerae, G. patriciae, G. pozonensis, G. primitiva, G. pseudofoliata, G. quadraria advena, G. sellii, G. subdehiscens, G. tripartita laxispira, G. tripartita tricamerata

Globoquadrina tripartita tricamerata

Citation: Globoquadrina tripartita subsp. tricamerata Fordham 1986
Rank: sub-species
Type specimens: UQF 71392.
Type age (chronostrat): Globorotalia mayeri zone; middle Miocene.
Type locality: DSDP 208-18-2 1-3 cm.
Type repository: Brisbane, Australia; U Queensland Univ.

Current identification:


Original Description

Very large, robust; moderately elevated sinistral trochospire, moderately loosely coiled in later whorls, both parallel and perpendicular to axis. Equatorial outline weakly trilobate; lateral outline highly umbilicoconvex. Chambers ovate parallel to axis, extremely closely appressed, over 8 (137), 3 in final whorl, 3i in second-last whorl; increase moderately rapid until third-last chamber when much reduced. Dorsal view: chambers much longer concentrically, slightly inflated; sutures weakly depressed; intercameral sutures slightly anteriorly directed, recurved posteriorly close to periphery giving effect of lateral overlap by next chamber; chambers broadest posteriorly, thus increasing lobation. Ventral view: chambers vaulted halfway to umbilicus, thus leaving a wide umbilicus and reduced intercameral contact; intercameral sutures radial where present; aperture umbilical, covered by foreign material. Lateral view: dorsoperipheral shoulder smoothly rounded; ventral face slightly flattened; umbilical shoulder acute; apertural face steep. Wall cancellate with large, dense pores.

Size:
Length, 460 µm; width, 490 µm; height, 570 µm.

Etymology:
Latin. tres, three; camera (f.), chamber; -atus, provided with.

Extra details from original publication
Description based on: Six specimens.
Holotype fig.: Fordham 1986 Pl. 4, fig. 18.

Editors' Notes

References:

Fordham, B. G. (1986). Miocene-Pleistocene planktic foraminifers from D.S.D.P. Sites 208 and 77, and phylogeny and classification of Cenozoic species. Queensland, Australia. 1-224. gs


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Globoquadrina tripartita tricamerata compiled by the pforams@mikrotax project team viewed: 7-8-2022

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Short stable page link: https://mikrotax.org/pforams/index.php?id=130953 Go to Archive.is to create a permanent copy of this page - citation notes



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