The alveolinid group of larger benthic foraminifera has been vastly studied in western and central Neo-Tethys, but less well analysed in eastern Neo-Tethys. In this study, 19 Ypresian (Ilerdian–Cuisian) and Early Lutetian species of Alveolina have been identified and their biometrics, taxonomy, and biostratigraphic correlation with western and central Neo-Tethys discussed. The Taxa of Early Ypresian age (SBZ5-9) includes Alveolina vredenburgi, A. dedolia, A. subpyrenaica, A. cf. subpyrenaica, A. moussoulensis, A. aragonensis, A. decipiens, A. cylindrata, and A. ilerdensis. The Late Ypresian age (SBZ10-12) taxa includes A. ruetimeyeri A. oblonga, A. haymanensis, A. lehneri, A. cosinensis cosigena, A. aff. frumentiformis, A sp. aff. A. azzarolii, and A. elliptica. The Early Lutetian age (SBZ13) taxa include A. stercusmuris and A. keili. The identified species have a close affinity to those reported from other areas of the Tethyan realm. However, some of these Alveolina species are considered to have stratigraphic ranges longer than formerly reported. The first appearance of A. ilerdensis (SBZ8-10) is recorded earlier in SBZ7. The first appearance of A. ruetimeyeri (SBZ10-11) is recorded earlier in SBZ-9. The study provides more evidence for understanding the evolution of the Alveolina species and their biostratigraphic distribution in the eastern Tethyan realm.

中文翻译：

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来自巴基斯坦下印度河流域的肺泡科动物（东新特提斯）：系统和生物地层学意义

新特提斯西部和中部对较大底栖有孔虫的肺泡类群进行了大量研究，但在新特提斯东部对其分析较少。在这项研究中，已经确定了19 种伊普鲁斯人（Ilerdian-Cuisian）和早期卢特斯人的Alveolina物种，并讨论了它们的生物特征、分类学以及与新特提斯中西部和中部的生物地层相关性。早期伊普雷斯期年龄的类群（SBZ5-9）包括Alveolina vredenburgi，A. dedolia，A. subpyrenaica，甲。参见 subpyrenaica、A. moussoulensis、A. aragonensis、A. decipiens、A. cylindrata和A. ilerdensis。晚伊普雷斯期年龄（SBZ10-12）类群包括A. ruetimeyeri A.矩，A. haymanensis，A. lehneri，A cosinensis cosigena，A。阿夫。frumentiformis, A sp. 阿夫。A. azzarolii和A. elliptica。鲁特田早期 (SBZ13) 分类群包括A. stercusmuris和A. keili。已确定的物种与特提斯王国其他地区报告的物种有密切的关系。然而，这些Alveolina物种中的一些被认为具有比以前报告的更长的地层范围。A的第一次出现。冬虫夏草(SBZ8-10) 在 SBZ7 中较早录制。A. ruetimeyeri (SBZ10-11)的首次出现早在 SBZ-9 中就有记录。该研究为了解特提斯山脉东部的Alveolina物种的进化及其生物地层分布提供了更多证据。