Globorotalia cultrata (d'Orbigny, 1839)

Symphonia, Tabita K. & Senthil, Nathan D., 2019, Taxonomic notes on Recent Foraminifera from the Continental Shelf-Slope Region of Southwestern Bay of Bengal, East Coast of India, Palaeontologia Electronica (55 A) 22 (3), pp. 1-89 : 51-53

Globorotalia cultrata (d’Orbigny, 1839a)

Figure 14.13-14

1839a Rotalina cultrata d’Orbigny , p. 76, pl. 5, figs. 7-9.

2010 Globorotalia cultrata (d’Orbigny) ; Ovechkina, Bylinskaya and Uken, p. 235, fig. 3A, 3D.

Description. Test broad, biconvex, wall calcareous, perforate, surface smooth; chambers nearly flat, subrounded on the spiral side, more inflated, subtriangular on the umbilical side, rapidly increasing in size as added, chamber arrangement trochospiral; periphery keeled, sutures arcuate on the spiral side, radial on the umbilical side; aperture interiomarginal, umbilical, low arched, with a plate-like tooth.

Figures

FIGURE 14. 1-4, Globigerinoides sacculifera (Brady, 1877) in dorsal view (scale equals 500 μm) (1); in ventral view (scale equals 400 μm) (2); in dorsal view (scale equals 500 μm) (3); and in ventral view (scale equals 500 μm) (4). 5-6, Globigerinoides triloba (Reuss, 1850) in dorsal view (scale equals 400 μm) (5) and in ventral view (scale equals 400 μm) (6). 7-8, Globoturborotalita sp. in dorsal view (scale equals 100 μm) (7) and in ventral view (scale equals 100 μm) (8). 9-10, Sphaeroidinella dehiscens (Parker and Jones, 1865) in dorsal view (scale equals 400 μm) (9) and in ventral view (scale equals 400 μm) (10). 11, Candeina nitida d’Orbigny, 1839 in dorsal view (scale equals 100 μm). 12, Globigerinita glutinata (Egger, 1893) in dorsal view (scale equals 100 μm). 13-14, Globorotalia cultrata (d’Orbigny, 1839) in dorsal view (scale equals 100 μm) (13) and in ventral view (scale equals 100 μm) (14). 15-16, Globorotalia menardii (d’Orbigny, 1826) in dorsal view (scale equals 400 μm) (15) and in ventral view (scale equals 500 μm) (16). 17-18, Globorotalia tumida (Brady, 1877) in dorsal view (scale equals 500 μm) (17) and in ventral view (scale equals 500 μm) (18). 19-20, Globorotalia ungulata Bermúdez, 1961 in dorsal view (scale equals 300 μm) (19) and in ventral view (scale equals 200 μm) (20).