Cibicides pachyderma (Rzehak, 1886)

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 : 42

Cibicides pachyderma (Rzehak, 1886)

Figure 11.7-9

1886 Truncatulina pachyderma Rzehak , p. 87, pl. 1, fig. 5a-c.

2010 Cibicidoides pachyderma Rzehak ; Margreth, p. 121, pl. 33, fig. 2a-c.

Description. Test lenticular, spiral side slightly convex, umbilical side strongly convex, wall calcareous, coarsely perforate, surface smooth; periphery rounded, sutures limbate, curved backwards, slightly depressed on spiral side, radial and depressed in the final chambers on the umbilical side; aperture an interiomarginal arch, bordered by a thick, everted lip.

Figures

FIGURE 11. 1, Fursenkoina hadai Uchio, 1962 in dorsal view (scale equals 300 μm). 2-3, Fursenkoina pannikeri (Seibold, 1972) in dorsal view (scale equals 300 μm) (2) and in closer view (scale equals 100 μm) (3). 4, Fursenkoina schreibersiana (Cžjžek, 1848) in dorsal view (scale equals 200 μm). 5-6, Cibicides kullenbergi Parker, 1953 in dorsal view (scale equals 200 μm) (5) and in ventral view (scale equals 200 μm) (6). 7-9, Cibicides pachyderma (Rzehak, 1886) in dorsal view (scale equals 200 μm) (7); in ventral view (scale equals 300 μm) (8); and in apertural view (scale equals 200 μm) (9). 10-11, Cibicides patalaensis Haque, 1956 in dorsal view (scale equals 300 μm) (10) and in ventral view (scale equals 300 μm) (11). 12-14, Cibicides praecinctus (Karrer, 1868) in dorsal view (scale equals 300 μm) (12); in ventral view (scale equals 400 μm) (13); and in apertural view (scale equals 400 μm) (14). 15, Cibicides pseudolobatulus Perelis and Reiss, 1975 in dorsal view (scale equals 100 μm). 16-17, Cibicides refulgens de Montfort, 1808 in lateral view (scale equals 200 μm) (16) and in ventral view (scale equals 300 μm) (17). 18-19, Cibicides wuellerstorfi (Schwager, 1866) in dorsal view (scale equals 200 μm) (18) and in ventral view (scale equals 200 μm) (19). 20-21, Hanzawaia nitidula (Bandy, 1953) in dorsal view (scale equals 300 μm) (20) and in ventral view (scale equals 300 μm) (21). 22. Planorbulina mediterranensis d'Orbigny, 1826 in dorsal view (scale equals 500 μm).