Citation: Globoquadrina kagaensis Maiya, Saito, & Sato 1976Rank: speciesType sample (& lithostrat): sample N-YB-65; lower part of the Yabuta Formation.Type age (chronostrat): PlioceneType locality: sea cliff on the eastern coast of Noto Peninsula, about 1 km, north of Ozaki. Himi City, Toyama Prefecture (text-figure 2); PlioceneType repository: Tokyo, Japan; National Science Museum
Original Description Test free, coiled in a low trochospire with 14 to 15 chambers in all arranged in about two and one-half whorls, four to four and one-half in the final whorl; earlier whorls distinctly high trochospiral, protruding conically on the spiral side; chambers subspherical to ovate, gradually increasing in size as added; equatorial profile subrhomboidal to subquadrate, equatorial periphery lobulate; axial periphery broadly rounded; sutures of the spiral side depressed and nearly radial; sutures of the umbilical side strongly depressed and becoming nearly incised toward the umbil icus, radial to slightly curved; umbilicus fairly wide and deep; aperture interiomarginal, umbilical extraumbilical, low-arched with a distinct toothlike flap; wall calcareous, coarsely pitted; surface granular in appearance. Size: Maximum diameters: Holotype (plate 3, figures 6a-6c). 0.43 mm.; paratype (plate 3, figures 4a-4b) 0.52 mm.; other unfigured paratypes range from 0.43 mm, to 0.53 mm. Extra details from original publication Remarks: This species is distinguished from Globoquadrina asanoi, n, sp., by having an aperture that is approaching an umbilical-extraumbilical position, subrhomboidal to subquadrate equatorial periphery, and the last whorl often consisting of four and one-half chambers instead of four as in G. asanoi.
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
Globoquadrina kagaensis compiled by the pforams@mikrotax project teamviewed: 23-3-2023