Pseudotriloculina linneiana (d’Orbigny, 1839b)

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 : 68

Pseudotriloculina linneiana (d’Orbigny, 1839b)

Figure 19.17-18

1839b Triloculina linneiana d’Orbigny , p. 172, pl. 9, figs. 11-13.

2003 Triloculina linneiana (d’Orbigny) ; Javaux and Scott, p. 23, figs. 5.16-17.

2012 Triloculina linneiana (d’Orbigny) ; Debenay, p. 116.

Description. Test slightly elongate, tapering at both the ends, wall calcareous, imperforate, surface ornamented by long costae on the final chambers, prominent, raised ridges on the earlier chamber; chambers slightly inflated, arranged in a cryptoquinqueloculine plan; periphery slightly ovate, sutures depressed; aperture terminal, circular on a slightly produced neck, bordered by a thick rim, with a large, bifid tooth.

Figures

FIGURE 19. 1-2, Quinqueloculina undulose costata Terquem 1882 in dorsal view (scale equals 500 μm) (1) and in ventral view (scale equals 500 μm) (2). 3-4. Quinqueloculina venusta Karrer, 1868 in dorsal view (scale equals 500 μm) (3) and in ventral view (scale equals 400 μm) (4). 5, Quinqueloculina vulgaris d’Orbigny, 1826 in dorsal view (scale equals 100 μm). 6-8, Cribromiliolinella milletti (Cushman, 1954) in dorsal view (scale equals 500 μm) (6); in dorsal view (scale equals 400 μm) (7); and in dorsal view (scale equals 500 μm) (8). 9, Miliolinella circularis (Bornemann, 1855) dorsal view (scale equals 300 μm). 10-11, Miliolinella subrotunda (Montagu, 1803) in dorsal view (scale equals 100 μm) (10) and in ventral view (scale equals 200 μm) (11). 12-13, Miliolinella webbiana (d’Orbigny, 1839b) in dorsal view (scale equals 500 μm) (12) and in ventral view (scale equals 500 μm) (13). 14-16, Pseudotriloculina kerimbatica (Heron-Allen and Earland, 1939) in apertural view (scale equals 400 μm) (14); in dorsal view (scale equals 500 μm) (15); and in ventral view (scale equals 300 μm) (16). 17-18, Pseudotriloculina linneiana (d’Orbigny, 1839a) in dorsal view (scale equals 300 μm) (17) and in apertural view (scale equals 200 μm) (18).