Paratrochamminoides draco ( Grzybowski, 1901 )

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 : 29

Paratrochamminoides draco ( Grzybowski, 1901)

Figure 16.18

1901 Trochammina draco ; Grzybowski, p. 280, pl. 8, fig. 10.

1995 Paratrochamminoides draco (Grzybowski) ; Bubík, p. 84, pl. 3, fig. 2a, b.

1996 Paratrochamminoides draco (Grzybowski) ; Kaminski, Kuhnt, and Radley, p. 16, pl. 3, fig. 8.

Material. One specimen from the sample PC11.

Description. Test free, large, elliptic in outline. Initially 2–3 glomospirine-like coiled whorls, followed by a reversed whorl of about 180°. Chambers elongated, sack-shaped, sutures very incise. Wall thick, medium to finely agglutinated. Aperture simple at the end of the last chamber.

Figures

FIGURE 16. Scanning electron micrographs of Reophacidae (1-3), Hormosinidae (4-13), and Lituotubidae (14-20) from the Caltavuturo Formation cropping out at Portella Colla. 1, Reophax duplex Grzybowski, 1896, PC060624. 2, Reophax pilulifer Brady, 1884, PC13. 3, Reophax sp. 1, PC060615. 4-5, Hormosina velascoensis (Cushman, 1926), PC060617 (4) and PC11 (5). 6, Hormosina trinitatensis Cushman and Renz, 1946, PC11. 7, Hormosina sp. 1, PC060624. 8, Hormosina sp. 2, PC060615. 9-11, Pseudonodosinella elongata Grzybowski, 1898, PC11 (9), PC060601 (10) and PCs0 (11). 12-13, Pseudonodosinella nodulosa Brady, 1879, PC11 (12) and PC060617 (13). 14, Paratrochamminoides acervulatus (Grzybowski, 1896), PC13. 15, Paratrochamminoides deflexiformis (Noth, 1912), PC060615. 16, Lituotuba lituiformis (Brady, 1879), PC060615. 17, Paratrochamminoides sp. 1, PC060601. 18, Paratrochamminoides draco (Grzybowski, 1901), PC11. 19, Paratrochamminoides mitratus (Grzybowski, 1901), PCs0. 20, Conglophragmium deforme (Grzybowski, 1898), PC060623. Scale bar equals 0.5 mm.