Acicularia sp. 2

SCHLAGINTWEIT, FELIX, RASHIDI, KOOROSH & MOSAVINIA, ABDOLMAJID, 2021, First Record Of Calcareous Green Algae (Dasycladales, Halimedaceae) From The Paleocene Chehel Kaman Formation Of North-Eastern Iran (Kopet-Dagh Basin), Acta Palaeontologica Romaniae 17 (1), pp. 51-64 : 53

Acicularia sp. 2

Fig. 4 j-k

Remarks: In the studied thin-sections, this morphotype is less frequent than Acicularia sp. 1 . It is more slender and exhibits spherical cysts (diameter 0.06-0.10 mm). Similar sections have been illustrated from the Thanetian Bekrit-Timahdit Formation of Morocco ( Kuss and Herbig, 1993, pl. 6, fig. 17).

Figures

Fig. 4 Acicularia sp. 1 (a-i, l-o), diverse oriented sections. Note the regular palisade-like arrangement of elongated cysts in h and the presence of a central hollow in some specimens (e.g., d, m). Acicularia sp. 2 (j-k) displaying spherical cysts. Thin-sections: Nf 12-1 (a, k), Nf 12-2 (b, d-e, g-j), Nf 12-3 (c, l), Nf 12 (f, m-o).