Figure 4 in Systematic taxonomy of middle Miocene Sphaeroidinellopsis (planktonic foraminifera)

Figure 4. Sphaeroidinellopsis kochi: A–C, NHMUK PM PF 75151, umbilical, edge and spiral views from sample 154/925A 4R-3 (60–62 cm), Zone M6 middle Miocene, western equatorial Atlantic; D, H, L, NHMUK PM PF 75152, from sample 159/959B 17H-6 (36–38 cm), Zone M10 middle Miocene, east equatorial Atlantic; P, wall texture detail in 50 × 50 Mm surface from specimen D; E–G, NHMUK PM PF 75153; J–I, NHMUK PM PF 75154; M–O, NHMUK PM PF 75155, from sample 154/925A 4R-2 (65–67 cm), Zone M7 middle Miocene, western equatorial Atlantic. Scale bars: A–O = 100 Mm; P = 10 Mm.