Cymopolia sp.

Barattolo, Filippo, Abad, Morteza Taherpour Khalil & Introduction, Mehdi Ashrafi, 2014, Dasycladalean Fossil Green Algae From The Maastrichtian-Paleocene Of Balkh Province (N Afghanistan), Acta Palaeontologica Romaniae 10 (1 - 2), pp. 1-2 : 92

Cymopolia sp.

Fig. 10 a-c, e-f

The Paleocene algal sample Sh 6 (= BA.4258) contains frequent remains of an articulated and corticated dasycladalean ( Fig. 10 a ) of moderate size (D = 0.53 – 1.0 mm, d = 0.28 – 0.40 mm). The alga can be compared to Indopolia satyavanti Pia , but the articulation excludes such attribution. Most of the articles have to be considered sterile because they do not display evidence of reproductive organs (figs. 10 b, e-f). Only a few show traces of gametangia (fig. 10 c). Primary laterals are rather short and are followed by long secondary laterals. The number of secondary laterals per primary cannot be detected with certainty; there are probably more than two. It would seem that a single gametangium is attached to the primary lateral. The taxon is assigned to the genus Cymopolia .

Figures

Fig. 10 a-c, e, f Cymopolia sp., a, two articles in oblique section, b, e, f, sterile specimens in oblique sections, c, fertile specimen in subtransversal section. d, g Orioporella malaviae Pia, d, oblique section of a whorl, notice the perforate calcareous wall; g, tangential section. Thin section: a-g, Sh6 (= BA.4258). Age and locality: Paleocene, environs of Kholm (N Afghanistan)