Pullenia

Setoyama, Eiichi & Kaminski, Michael A., 2015, Neogene benthic foraminifera from the southern Bering Sea (IODP Expedition 323), Palaeontologia Electronica (International ed. in English) 76 (4), pp. 1-30 : 17

Pullenia cf. Pullenia catalinaensis McCulloch, 1977

Figures 6.9a, b, 6.10a, b

1977 Pullenia catalinaensis McCulloch : p. 436, pl. 171, fig. 4.

Description. Test of medium size, planispiral, with five and a half to six and a half chambers in the final whorl. Umbilicus small. Periphery rounded, lobulated. Chambers increasing in size gradually. Sutures distinct, depressed, sinuous, or curved backwards. Wall finely perforated, smooth. Aperture a basal slit with a lip.

Remarks. The specimens in this study are smaller than the type specimen, which is ca. 1 mm in the maximum diameter, and appear to be more highly perforated. McCulloch depicts a specimen that appears to be shinier, without visible pores. The species differs from Pullenia bulloides in its more laterally compressed test, higher number of chambers, and curved sutures and from Pullenia quinqueloba ( Reuss, 1851) by possessing a more rounded periphery and more than five chambers in the final whorl.

Figures

FIGURE 6. All scale bars are 100 µm. 1. Nonionellina labradorica, 3H-CC; a. lateral left view; b. edge view. 2. Nonionellina cf. Nonionellina labradorica, 15H-5, 146–148 cm; a. lateral left view; b. edge view. 3. Astrononion stellatum, 10H-CC; a. lateral fight view; b. lateral left view; c. edge view. 4. Melonis affinis, 1H-CC; a. lateral left view; b. edge view. 5. Melonis affinis, 9H-5, 146–148 cm. 6. Melonis pompilioides, 1H-CC; a. lateral left view; b. edge view. 7. Pullenia bulloides, 11H-3, 146–148 cm; a. lateral left view; b. apertural view. 8. Pullenia bulloides, 12H-3, 146–148 cm; a. lateral left view; b. apertural view. 9. Pullenia cf. Pullenia catalinaensis, 36H-CC; a. lateral left view; b. edge view. 10. Pullenia cf. Pullenia catalinaensis, 9H-5, 146–148 cm; a. lateral left view; b. edge view. 11. Pullenia elegans, 13H-3, 146–148 cm; a. lateral right view; b. edge view. 12. Pullenia elegans, 13H-3, 146–148 cm; a. lateral left view; b. edge view. 13. Pullenia salisburyi, 26H-5, 147–149 cm; a. lateral left view; b. edge view. 14. Chilostomella ovoidea, 2H-CC, a. ventral view; b. dorsal view. 15. Chilostomella cf. Chilostomella fimbriata, 10H-3, 146–148 cm; a. lateral right view; b. edge view.