Haplophragmoides carinatus Cushman and Renz, 1941

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 : 37-38

Haplophragmoides carinatus Cushman and Renz, 1941

Figure 18.11-13

1941 Haplophragmoides carinatum ; Cushman and Renz, p. 2, pl. 1, fig. 1.

2004 Haplophragmoides carinatus (Cushman and Renz) ; Green, Kaminski, and Sikora, p. 124, pl. 1, fig. 8.

Material. 21 specimens from seven samples.

Description. Test free, planispirally involute coiled, depressed in the umbelical zone, periphery lobate and carinate. Chambers triangular in shape increasing gradually in size, sutures incise and slightly curved. Wall finely agglutinated.

Distribution. At Portella Colla occurs only in the upper Rupelian.

Remarks. Haplophragmoides carinatus differs from H. walteri in having a tranversal section more lenticular, and the last chamber elongated and strictly triangular.

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.