Eight species in six genera of cheilostome bryozoans are described from an early Maastrichtian outcrop located in the Saratov Region, middle Volga River region, southern Russia. The studied bryozoan assemblage includes a new species, Cheethamia volgaensis sp. nov., as well as Dionella sp., Cheethamia aktolagayensis Koromyslova et al., Rhagasostoma cf. saltans (Brydone), and Luganella goldfussi (von Hagenow). A few poorly preserved specimens are tentatively assigned to the genera Hoplitaechmella and Acoscinopleura. Some of the recorded species encrusted a Cataceramus shell and internal moulds of Baculites ammonoid shell fragments; whereas others produced erect, flattened, bifoliate colonies. A single species, L. goldfussi, had free-living, discoidal colonies. The palaeobiogeography of early Maastrichtian bryozoans is discussed. The recorded bryozoans belong to genera ubiquitous in the early Maastrichtian of Europe and, to a lesser degree, other regions.

在俄罗斯南部伏尔加河地区中部萨拉托夫地区的一个早期马斯特里赫特人露头中，描述了成唇龟科苔藓虫的六个属中的八种。研究的苔藓虫组合包括一个新物种，即Cheethamia volgaensis sp。，以及Dionella sp。，Cheethamia aktolagayensis Koromyslova等，Rhagasostoma cf. 萨尔坦（Brydone）和卢甘内拉（Luganella goldfussi）（冯·哈格诺（von Hagenow））。暂定将一些保存不佳的标本归入Hoplitaechmella和Acoscinopleura属。一些记录下来的物种包裹了金龟子的外壳和内部的霉菌棒状杆菌的氨化壳碎片；而其他则产生直立，扁平的双叶菌落。一个单一的物种，L。goldfussi，有自由活动的盘状菌落。讨论了早期马斯特里赫特苔藓动物的古生物地理学。记录的苔藓虫属在欧洲早期的马斯特里赫特人属中普遍存在，在较小程度上还属于其他地区。