Nothia robusta ( 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 : 19

Nothia robusta ( Grzybowski, 1898)

Figure 12.10

1898 Dendrophrya robusta ; Grzybowski, p. 273, pl. 10, fig. 7.

1993 Rhabdammina robusta (Grzybowski) ; Kaminski and Geroch, p. 247, pl. 1, figs. 7-9b, 16a, b.

1995 Nothia robusta (Grzybowski) ; Holbourn and Kaminski, p. 438, pl. 1, figs. 12, 13.

1996 Rhabdammina robusta (Grzybowski) ; Kaminski, Kuhnt, and Radley, p. 16, pl. 1, figs. 2-18.

2005 Nothia robusta (Grzybowski) ; Kaminski and Gradstein, p. 114, pl. 4.

2009 Nothia robusta (Grzybowski) ; Kender, Kaminski, and Jones, p. 493, pl. 1, fig. 7.

Material. 93 specimens from 16 samples.

Description. Test large, tubular, straight, compressed with a longitudinal furrow. Wall thick, coarse agglutinated with medium sized grains.

Remarks. Typical branched forms were absent, we have found only fragmented specimens. Nothia robusta differs from N. excelsa in having larger size and thicker wall.

Distribution. Cosmopolitan taxon known from the Late Cretaceous to the early Miocene ( Kaminski and Gradstein, 2005).

Figures

FIGURE 12. Scanning electron micrographs of Astrorhizida (1-13) and Saccamminidae (14-15) foraminifers from the Caltavuturo Formation cropping out at Portella Colla. 1-2, Rhabdammina discreta Brady, 1884, PCs0 (1) and PC060618 (2). 3, Rhabdammina eocenica Cushman and Hanna, 1927, PC060601. 4-5, Psammosiphonella cylindrica (Glaessner, 1937), PC11 (4) and PCs0 (5). 6-7, Psammosiphonella linearis (Brady, 1879), PC060618 (6) and PC11 (7). 8, Bathysiphon sp., MM12. 9, Nothia excelsa (Grzybowski, 1898), PC060603. 10, Nothia robusta (Grzybowski, 1898) with Ammolagena clavata (Jones and Parker, 1860), PC060621. 11, Nothia cf. latissima (Grzybowski, 1898), PC060624. 12-13, Rhizammina indivisa Brady, 1884, PC060621. 14-15, Psammosphaera irregularis (Grzybowski, 1896), PC13 (14) and PC22 (15). 16, Placentammna placenta (Grzybowski, 1898), PCs0. 17, Saccammina grzybowskii (Schubert, 1902), PC060621. Scale bar equals 0.5 mm.