Quinqueloculina lamarckiana 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 : 63

Quinqueloculina lamarckiana d’Orbigny, 1839b

Figure 18.5

1839b Quinqueloculina lamarckiana d’Orbigny , p. 189, pl. 11, figs. 14-15.

1999 Quinqueloculina lamarckiana d’Orbigny ; Nigam and Khare, p. 290, pl. 2, fig. 4.

2003 Quinqueloculina lamarckiana d’Orbigny ; Javaux and Scott, p. 20, fig. 4.12-13.

2014 Quinqueloculina lamarckiana d’Orbigny ; Panchang and Nigam, pl. 9, fig. 8a-c.

Description. Test broad, flattened at the sides, apertural view triangular, wall calcareous, imperforate, surface smooth; chambers visible, chamber arrangement quinqueloculine; periphery acutely angled, sutures distinct, slightly depressed; aperture terminal, subcircular, at the end of a slightly produced neck, bordered by a rim, with a large, simple tooth.

Figures

FIGURE 18. 1-2, Quinqueloculina bubnanensis McCulloch, 1977 in dorsal view (scale equals 400 μm) (1) and in apertural view (scale equals 200 μm) (2). 3-4, Quinqueloculina delicatula Vella, 1957 in dorsal view (scale equals 400 μm) (3) and in apertural view (scale equals 300 μm) (4). 5, Quinqueloculina lamarckiana d’Orbigny, 1839 in dorsal view (scale equals 200 μm). 6, Quinqueloculina lizardi Baccaert, 1987 in dorsal view (scale equals 200 μm). 7, Quinqueloculina parkeri (Brady, 1881) in dorsal view (scale equals 300 μm). 8, Quinqueloculina parvula Schlumberger, 1894 in dorsal view (scale equals 300 μm). 9-11, Quinqueloculina philippinensis Cushman, 1921 in dorsal view (scale equals 400 μm) (9); in ventral view (scale equals 400 μm) (10); and in apertural view (scale equals 500 μm) (11). 12, Quinqueloculina schlumbergeri (Wiesner, 1923) in dorsal view (scale equals 300 μm). 13-14, Quinqueloculina seminula (Linnaeus, 1758) in dorsal view (scale equals 100 μm) (13) and in ventral view (scale equals 100 μm) (14). 15-17, Quinqueloculina subparkeri McCulloch, 1977 in dorsal view (scale equals 300 μm) (15); in apertural view (scale equals 200 μm) (16); and in ventral view (scale equals 200 μm) (17). 18, Quinqueloculina subpolygona Parr, 1945 in dorsal view (scale equals 400 μm). 19-20, Quinqueloculina sulcata Fornasini, 1900 in dorsal view (scale equals 500 μm) (19) and in ventral view (scale equals 300 μm) (20).