CATALOG OF ORIGINAL DESCRIPTIONS: Globigerina ariakensis Asano 1962

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 ariakensis
Other pages this level: << < G. ampliapertura cancellata, G. anconitana, G. angipora, G. angiporoides, G. angiporoides minima, G. angulata, G. anguliofficinalis, G. antarctica, G. antillensis, G. apertura, G. applanata, G. aptica, G. aquiensis, G. arabica, G. archaeobulloides, G. ariakensis, G. aspensis, G. aspera, G. asperula, G. atlantica, G. atlantis, G. atlantisae, G. aumalensis, G. ayalai, G. azerbaidjanica, G. baconica, G. bacuana, G. bakeri, G. balchanensis, G. baroemoenensis, G. baroemoenensis quadrata> >>

Globigerina ariakensis

Citation: Globigerina ariakensis Asano 1962
Rank: species
Type locality: 500 m west of Okubo, Ariake-mura, Kami-shima, Kyushu Region, Japan.
Type age (chronostrat): Eocene
Type sample (& lithostrat): Kyoragi formation
Type specimens: Pl. 20, figs. 5a, b, c; 7a, b, c.; Holotype:- Figs. 7a, b, c, ; ; IGPS coll. cat. no. 77223.

Current identification:


Original Description
Test moderately trochospiral, periphery broadly rounded, somewhat lobulated; chambers inflated, usually four in last whorl, arranged in a lozenge on umbilical side; wall finely perforate, surface smooth; sutures depressed, but indistinct on spiral side, nearly radial on umbilical side; umbilicus depressed, almost closed; aperture elongate, without a lip.

Size: Maximum diameter of holotype 1.0 mm.

Extra details from original publication
Remarks: - This new species appears to be related to Globoquadrina venezuelana (Hedberg), but is clearly distinguished from it by the characters of the aperture.

Occurrence:- Restricted to the lower part of the Kyoragi formation, Amakusa Islands.

References:

Asano, K. (1962). Tertiary Globigerinids from Kyushu, Japan. Science Reports of the Tohoku University, Series 2 (Geology). Special Volume 5: 49-65. gs

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Globigerina ariakensis compiled by the pforams@mikrotax project team viewed: 28-1-2021

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