SIRELINA ORDUENSIS (FORAMINIFERA) A NEW GENUS AND SPECIES FROM THE MAASTRICHTIAN OF NORTHEAST ANATOLIA (GOLKOY-ORDU)

A new genus and species of foraminifera is described from the Maastric htian of the Golkoy (Ordu) region of Turkey. It is named Sirelina ordu ensis n. gen., n. sp. The test of the genus has a microgranular calcer eous structure and chevron canal systems are visible. In the early sta ge, chambers have a coiled milioline structure; however, they are troc hospiral in the juvenile stage and uniserial in the adult stage. In th e adult stage, lateral orbital chamber are developed. The aperture is cribrate in shape. It may easily be distinguished from the other simil ar genera by its test structure and coiling system.