CATALOG OF ORIGINAL DESCRIPTIONS: Globigerina sakitoensis 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.
Citation: Globigerina sakitoensis Asano 1962Rank: speciesType specimens: Pl. 22, figs. 1a, b, c.; IGPS coll. cat. no. 77243.Type sample (& lithostrat): Nakado formation;Type age (chronostrat): EoceneType locality: 126m depth of the boring core drilled at Nakado, Sakito-machi, Nishisonogi- gun, Nagasaki Prefecture; Kyushu, Japan
Current identification:
Original Description Test large, subquadrate in outline, low-spired, periphery broadly rounded; chambers few, large and inflated, later ones strongly embracing dorsally and overhanging the umbilicus ventrally, last three constituting most of the test; sutures indistinct on dorsal side, depressed and gently curved on ventral side; umbilicus narrow, deep; wall finely perforate ; aperture narrow, often with a small lip. Size: Maximum diameter 0.8 mm, thickness 0.5 mm. Extra details from original publication Remarks: - This species is distinguished from Globigerina eximia Todd by the subquadrate test and not lobulate chambers. Occurrence:- Restricted to the Nakado formation, Nagasaki Prefecture. Similar forms (Pl. 22, figs. 2a-c) although not strongly embracing dorsally were found in the samples from Yamaguchi, Kazusa-machi, Minami-takaki-gun, Nagasaki Prefecture.
References:
Asano, K. (1962). Tertiary Globigerinids from Kyushu, Japan. Science Reports of the Tohoku University. Special Volume 5: 49-65. gs
Globigerina sakitoensis compiled by the pforams@mikrotax project teamviewed: 5-6-2023
Asano 1962 pl 22 f1.JPG
Asano 1962 pl 22 f1.JPG
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