Globigerinella siphonifera (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 : 50

Globigerinella siphonifera (d’Orbigny, 1839a)

Figure 13.14-16

1839a Globigerina siphonifera d’Orbigny , p. 83, pl. 4, figs. 15-18.

1983 Globigerinella aequilateralis (Brady) ; Kennett and Srinivasan, p. 238, pl. 59, fig. 1; pl. 60, figs. 4-6.

2010 Globigerinella siphonifera (d’Orbigny) ; Ovechkina, Bylinskaya, and Uken, p. 244, fig. 7A, 7B, 7D, 7E.

Description. Test large, wall perforate, surface ornamented with round spines; chambers spherical initially, globular or ovoid in the final stage, chamber arrangement nearly planispiral, coiling involute; periphery rounded, sutures distinct and depressed; aperture high, symmetrical, equatorial arch.

Figures

FIGURE 13. 1, Stainforthia fusiformis (Williamson, 1858) in dorsal view (scale equals 200 μm). 2-3, Beella digitata (Brady, 1879a) in dorsal view (scale equals 300 μm) (2) and in ventral view (scale equals 300 μm) (3). 4-5, Globigerina bulloides d’Orbigny, 1826 in dorsal view (scale equals 200 μm) (4) and in ventral view (scale equals 200 μm) (5). 6-7, Globigerina falconensis Blow, 1959 in dorsal view (scale equals 100 μm) (6) and in ventral view (scale equals 200 μm) (7). 8-9, Globigerina quinqueloba Natland, 1938 in dorsal view (scale equals 200 μm) (8) and in ventral view (scale equals 200 μm) (9). 10-11, Globigerinella calida (Parker, 1962) in dorsal view (scale equals 200 μm) (10) and in ventral view (scale equals 100 μm) (11). 12-13, Globigerinella radians (Egger, 1893) in dorsal view (scale equals 200 μm) (12) and in ventral view (scale equals 200 μm) (13). 14-15, Globigerinella siphonifera (d’Orbigny, 1839) in dorsal view (scale equals 200 μm) (14) and in ventral view (scale equals 200 μm) (15). 16, Globigerinella siphonifera (d’Orbigny, 1839) in apertural view (scale equals 400 μm). 17-18, Globigerinoides conglobata (Brady, 1879a) in dorsal view (scale equals 400 μm) (17) and in ventral view (scale equals 400 μm) (18). 19-20, Globigerinoides rubra (d’Orbigny, 1839) in dorsal view (scale equals 200 μm) (19) and in ventral view (scale equals 200 μm) (20). 21, Orbulina universa d’Orbigny, 1839 in dorsal view (scale equals 400 μm).

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).

FIGURE 15. 1, Globorotalia neoflexuosa in dorsal view (scale equals 500 μm). 2-3, Neogloboquadrina dutertrei (d’Orbigny, 1839) in dorsal view (scale equals 200 μm) (2) and in ventral view (scale equals 300 μm) (3). 4-5, Neogloboquadrina incompta (Cifelli, 1961) in dorsal view (scale equals 100 μm) (4) and in ventral view (scale equals 100 μm) (5). 6-8, Pulleniatina obliquiloculata (Parker and Jones in Carpenter, Parker and Jones, 1862) in dorsal view (scale equals 200 μm) (6); in ventral view (scale equals 200 μm) (7); and in apertural view (scale equals 200 μm) (8). 9, Textularia agglutinans d’Orbigny, 1839a in dorsal view (scale equals 400 μm). 10, Textularia candeiana d’Orbigny, 1839a in dorsal view (scale equals 300 μm). 11, Textularia earlandi Parker 1952 in dorsal view (scale equals 1 mm). 12, Textularia fistula Cushman, 1911 in dorsal view (scale equals 300 μm). 13-14, Textularia granulata Costa 1855 in dorsal view (scale equals 400 μm) (13) and in apertural view (scale equals 200 μm) (14). 15, Textularia pala (Cžjžek, 1848) in dorsal view (scale equals 200 μm). 16, Textularia pseudogramen Chapman and Parr, 1937 in dorsal view (scale equals 200 μm). 17, Bigenerina nodosaria d’Orbigny, 1826 in dorsal view (scale equals 400 μm). 18, Sahulia conica (d’Orbigny, 1839) in dorsal view (scale equals 100 μm). 19, Sahulia kerimbaensis (Said, 1949) in dorsal view (scale equals 100 μm). 20, Karrerotextularia flintii (Cushman, 1911) in dorsal view (scale equals 100 μm). 21, Spirorutilus carinatus (d’Orbigny, 1846) in dorsal view (scale equals 100 μm).

FIGURE 16. 1, Clavulina angularis d’Orbigny, 1826 in dorsal view (scale equals 300 μm). 2-3, Martinottiella cylindrica (d’Orbigny, 1852) in dorsal view (scale equals 1 mm) (2) and in apertural view (scale equals 200 μm) (3). 4, Pseudoclavulina serventyi (Chapman and Parr, 1935) in dorsal view (scale equals 500 μm). 5, Hyperammina friabilis Brady, 1884 in dorsal view (scale equals 1 mm). 6-7, Lagenammina difflugiformis (Brady, 1879a) in dorsal view (scale equals 300 μm) (6) and in apertural view (scale equals 200 μm) (7). 8, Psammosphaera fusca Schulze, 1875 in dorsal view (scale equals 200 μm). 9-10, Adelosina longirostra (d’Orbigny, 1826) in dorsal view (scale equals 200 μm) (9) and in ventral view (scale equals 200 μm) (10). 11-12, Adelosina pulchella (d’Orbigny, 1826) in dorsal view (scale equals 200 μm) (11) and in ventral view (scale equals 300 μm) (12). 13, Cribrolinoides curta (Cushman, 1917) in dorsal view (scale equals 200 μm). 14, Miliammina fusca (Brady, 1870) in dorsal view (scale equals 200 μm). 15, Pseudohauerinella orientalis (Cushman, 1946) in dorsal view (scale equals 200 μm). 16, Sigmoihauerina bradyi (Cushman, 1917) in dorsal view (scale equals 200 μm). 17, Agglutinella arenata (Said, 1949) in dorsal view (scale equals 500 μm).