Catalog - Globoquadrina himiensis

CATALOG OF ORIGINAL DESCRIPTIONS: Globoquadrina himiensis Maiya, Saito, & Sato 1976

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 himiensis
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 himiensis

Citation: Globoquadrina himiensis Maiya, Saito, & Sato 1976
Rank: species
Type sample (& lithostrat): Sample N-YB-65; lower part of the Yabuta Formation;
Type age (chronostrat): Pliocene
Type locality: sea cliff on the eastern coast of Noto Peninsula, about 1 km, north of Ozaki. Himi City. Toyama Prefecture; Japan
Type repository: Tokyo, Japan; National Science Museum

Linked specimens: USNM-245255

Current identification/main database link: Neogloboquadrina dutertrei (d’Orbigny, 1839)


Original Description

Test free, large, coiled in a low trochospire, with 14 to 15 chambers in all arranged in nearly three whorls, with four and one-half to five in the final whorl; earlier whorls distinctly high trochospiral, protrud ing conically on the spiral side; chambers subspherical to ovate, gradually increasing in size; equatorial periphery distinctly, lobulate, equatorial profile subquadrate; axial profile broadly rounded; sutures of both spiral and umbil ical sides distinctly depressed, nearly radial to slightly curved; umbilicus well marked, deep, and widely open; aperture interiomarginal, nearly umbilical-extraumbilical, low arch with a distinct toothlike flap; wall calcareous, uniformly and coarsely pitted.

Size:
Maximum diameters: Holotype (plate 4, figures 1a-1c) 0.50 mm.; paratype (plate 4, figures 2a-2c) 0.50 mm.

Etymology:

Extra details from original publication
Remarks: This species differs from Globoquadrina kagaensis, n, sp., in having a deeper and more widely open umbilicus, an aperture approaching umbilical extraumbilical in position, and a subquadrate to subrhomboidal equatorial profile, lt is also distinguished from Globoquadrina eggeri (Rhumbler) by the fact that its last whorl consists of no more than five chambers, instead of the five and one-half to six chambers in G. eggeri, its very high conical earlier whorls, and its apertural arch which is concave toward the periphery. In contrast. G. eggeri has an apertural arch which is convex toward the periphery. In general appearance it also resembles Globigerina helicina d'Orbigny as figured by Banner and Blow (1960), particularly in having conically protruded earlier whorls. Globoquadrina himiensis is distinguished, however, by its much more widely open umbilicus and the trochospiral arrangement of chambers which is highly conical only in the earl ier whorls.

Editors' Notes

References:

Maiya, S., Saito, T. & Sato, T. (1976). Late Cenozoic planktonic foraminiferal biostratigraphy of northwest Pacific sedimentary sequences. In, Takayanagi, Y. & Saito, T. (eds) Progress in Micropaleontology. Micropaleontology Press, New York 395-422. gs


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Globoquadrina himiensis compiled by the pforams@mikrotax project team viewed: 3-10-2022

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