Recurvoides nucleolus ( Grzybowski, 1898 )

Benedetti, A, 2017, Eocene / Oligocene deep-water agglutinated foraminifers (DWAF) assemblages from the Madonie Mountains (Sicily, Southern Italy), Palaeontologia Electronica 20 (1), pp. 1-66 : 43

Recurvoides nucleolus ( Grzybowski, 1898)

Figure 19.22

1898 Trochammina nucleolus ; Grzybowski, p. 291, pl. 11, figs. 28, 29.

1993 Recurvoides nucleolus (Grzybowski) emend Samuel, 1977; Kaminski and Geroch, p. 265, pl. 11, fig. 4a-d.

2005 Recurvoides nucleolus (Grzybowski) emend Samuel, 1977; Kaminski and Gradstein, p. 408, figs. 97-1, 97-2.

Material. Three specimens from three samples.

Description. Test free, rounded, and planoconvex.

Initial streptospiral coil without changes in direction, followed by a short plano- or slowly trochospiral coil.

Distribution. Maastrichtian–Eocene ( Kaminski and Gradstein, 2005).

Figures

FIGURE 19. Scanning electron micrographs of Haplophragmoididae (1-6), Sphaeramminidae (7-10), Lituolidae (11- 14), and Recurvoidea (15-25) from the Caltavuturo Formation cropping out at Portella Colla. 1-2, Haplophragmoides cf. latissimusuturalis Smith, 1971, PC3. 3, Haplophragmoides sp. 3, PC060615. 4, Haplophragmoides sp. 4, PC060601. 5, Haplophragmoides sp. 5, PC060615. 6, Haplophragmoides sp. 6, PC060621. 7-8, Praesphaerammina subgaleata (Vašiček, 1947), PC11 (7) and PC1 (8). 9-10, Ammosphaeroidina pseudopauciloculata (Mjatliuk, 1966), PC060604 (9) and PC060604 (10). 11, Ammobaculites agglutinans (d’Orbigny, 1846), PC060615. 12, Ammobaculites sp. 1, PC060607. 13, Ammobaculites sp. 3, PC15. 14, Ammobaculites sp. 2, PC060625. 15-16, Budashevaella multicamerata (Voloshinova and Budasheva, 1961), PC060604. 17, Cribrostomoides subglobosus (Cushman, 1910), PC060604. 18, Recurvoidella lamella (Grzybowski, 1898), PC060601. 19, Recurvoides anormis Mjatliuk, 1970, PC5. 20, Recurvoides sp. 1, PC060601. 21, Recurvoides sp. 2, PC060623. 22, Recurvoides nucleolus (Grzybowski, 1898), MM3. 23, Recurvoides walteri (Grzybowski, 1898), PC5. 24, Trochammina bifaciata Friedberg, 1901, PC060604. 25, Thalmannammina subturbinata (Grzybowski, 1898), MM14. Scale bar equals 0.5 mm.