Fig. 5 in Late Tortonian bryozoans from Mut Basin, Central Anatolian Plateau, southern Turkey

Fig. 5. Interior view of an ascophoran bryozoan Ostrovskia triforamina gen. et sp. nov. from the Miocene of Turkey. A. PM2−T1155, interior view of several zooecia showing a perforated ovicell, marginal areolar−septular pore canals in section, small pseudopores, and, in the left−hand zooecium, the interior of a triangular heterozooecium inside the peristome. B. PM2−T1157, proximal interior of a peristome with the fractured chamber of a triangular intraperistomial heterozooecium. C. PM2−T1158, detail of two broken peristomes showing triangular heterozooecium with small pores situated inside. D. PM2−T1156, oblique view of ovicell autozooecium showing perforation of ovicell and part of an intra−peristomial heterozooecium with one corner opening toward an interior areolar−septular pore. Scale bars 100 µm.