Rotalinoides gaimardii (d’Orbigny, 1826)

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 : 20

Rotalinoides gaimardii (d’Orbigny, 1826)

Figure 5.1-2

1826 Rotalia (Turbinulina) gaimardii d’Orbigny , p. 275, pl. 106.

2001 Asterorotalia gaimardii (d’Orbigny) ; Szarek, p. 148, pl. 27, figs. 7-8.

2015 Rotalinoides gaimardii (Fornasini) ; Hanagata and Nobuhara, p. 119, figs. 36. 1-2.

Description. Test planoconvex, wall calcareous, perforate, surface smooth; chambers slightly convex on the dorsal side, highly convex on the ventral side, trochospirally arranged; periphery lobulated, strongly keeled, sutures raised, limbate on the spiral side, radial, deeply sutured, beaded on the umbilical side; aperture terminal, interiomarginal opening on the ventral side.

Figures

FIGURE 5. 1-2, Rotalinoides gaimardii (d’Orbigny, 1826) in dorsal view (scale equals 200 μm) (1) and in ventral view (scale equals 300 μm) (2). 3-6, Neorotalia calcar (d’Orbigny, 1839) in dorsal view (scale equals 400 μm) (3); in ventral view (scale equals 300 μm) (4); elongate form in dorsal view (scale equals 400 μm) (5); and elongate form in ventral view (scale equals 400 μm) (6). 7-8. Pararotalia boltovskoyi Jain and Bhatia, 1978 in dorsal view (scale equals 200 μm) (7) and in ventral view (scale equals 200 μm) (8). 9-10, Pararotalia calcariformata McCulloch, 1977 in dorsal view (scale equals 200 μm) (9) and in ventral view (scale equals 200 μm) (10). 11-12, Pararotalia nipponica Asano, 1936 in dorsal view (scale equals 200 μm) (11) and in ventral view (scale equals 300 μm) (12). 13-14, Pararotalia venusta (Brady, 1884) in dorsal view (scale equals 300 μm) (13) and in ventral view (scale equals 300 μm) (14). 15-16, Calcarina hispida Brady, 1876 in dorsal view (scale equals 500 μm) (15) and in ventral view (scale equals 500 μm) (16).