Fig. 6 Persiacyclammina maastrichtiana n. gen., n in Persiacyclammina Maastrichtiana N. Gen., N. Sp., A New Larger Benthic Foraminifer From The Maastrichtian Of Iran

Fig. 6 Persiacyclammina maastrichtiana n. gen., n. sp., upper Maastrichtian Tarbur Formation of the Naghan section, Zagros Zone, SW Iran. a–c, Almost centered equatorial sections. Arrow: Detail from b, showing remnants of an organic membrane inside the proloculus. d (holotype specimen), g, i, k, Oblique equatorial sections. e–f, h, j, l, Oblique sections. m, Oblique section of specimen with four uncoiled chambers (last chamber is broken). Note differing coiling axis of enrolled and uncoiled parts. Arrows in c and g = single, basal to areal foramina of the early growth stage. Abbreviations: p = proloculus, s = septum, s.s. = subepidermal septulum. Thin-sections: NG 71 (a), 2NG 159 (b), 2NG 83 (c), 2NG 81-1 (d–e, h), NG 107 (f), NG 144-2 (g), NG 52-2 (i), NG 113 (j), NG 116 (k), 2NG 81 (m).