Trochamminoides cf. proteus ( Karrer, 1866 )

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 : 33

Trochamminoides cf. proteus ( Karrer, 1866)

Figure 18.3

cf. 1866 Trochammina proteus ; Karrer, pl. 1, fig. 8.

Material. One specimen from the sample PC060624.

Description. A species referred to the genus Trochamminoides with six subcircular and compressed chambers in the last whorl. Periphery lobate. Wall finely agglutinated with some medium to large sized quartz grains.

Remarks. Differs from T. proteus in having less chambers and a larger size.

Figures

FIGURE 18. Scanning electron micrographs of Trochamminoidae (1-10) and Haplophragmoididae (11-27) from the Caltavuturo Formation cropping out at Portella Colla. 1, Trochamminoides septatus (Grzybowski, 1898), PC060604. 2, Trochamminoides proteus (Karrer, 1866), PC060621. 3, Trochamminoides cf. proteus (Karrer, 1866), PC060624. 4, Trochamminoides velascoensis Cushman, 1926, PC11. 5, Trochamminoides intermedius (Grzybowski, 1896), PC060621. 6, Trochamminoides variolarius (Grzybowski, 1898), MM14. 7, Trochamminoides sp. 1, PC060603. 8, Trochamminoides sp. 2, PC060604. 9, Trochamminoides sp. 3, PC060618. 10, Trochamminoides sp. 4, PC18. 11-13, Haplophragmoides carinatus Cushman and Renz, 1941, PC060621 (11), PC060621 (12) and PC060624 (13). 14-16, Haplophragmoides walteri (Grzybowski, 1898), PC18 (14), PC11 (15), PC5 (16). 17, Haplophragmoides eggeri Cushman, 1926, PC060611. 18, Haplophragmoides excavatus Cushman and Waters, 1927, PC060601. 19, Haplophragmoides cf. kirki Wickenden, 1932, PC060602. 20, Haplophragmoides porrectus Maslakova, 1955, PCs0. 21, Haplophragmoides cf. walteri (Grzybowski, 1898), PC060621. 22, Haplophragmoides horridus (Grzybowski, 1901), PC060601. 23, Haplophragmoides cf. horridus (Grzybowski, 1901), PC060604. 24, Haplophragmoides cf. porrectus Maslakova, 1955, PC060615. 25-26, Haplophragmoides sp. 1, PC060602 (25) and PC060602 (26). 27, Haplophragmoides sp. 2, PC060603. Scale bar equals 0.5 mm.