Fig. 13. Microphotography of fossils at Pliocene marker levels. A, Foraminifera Ammonia beccarii , and Elphidium crispum

Two species of Rotaliidea have been identified at several sites: Ammonia beccarii Linnaeus, 1758, at Imounsis, Illigh, and Tildi, and Elphidium crispum only at Illigh. Ammonia beccarii Linnaeus, 1758, is notable for its abundant distribution in several levels, particularly at level IMS-P4. It is sometimes associated with Ostracods and Elphidium crispum at
the Illigh site, specifically in levels ILL-P12 and ILL-Q1

在多个采样点已鉴定出2种轮孔虫亚目（Rotaliidea）生物：毕克卷转虫（Ammonia beccarii Linnaeus, 1758）发现于伊穆恩西斯（Imounsis）、伊利赫（Illigh）与提尔迪（Tildi）三个采样点，而脆饰凸镜虫（Elphidium crispum）仅在伊利赫采样点被记录。毕克卷转虫的显著特征为在多个沉积层位广泛分布且丰度较高，尤其在IMS-P4层位中分布最为富集。在伊利赫采样点的ILL-P12与ILL-Q1层位中，该种有时会与介形类（Ostracods）及脆饰凸镜虫伴生。