Abstract

The foraminiferal genus Janischewskina of the family Janischewskinidae Reitlinger, 1996, which is widespread in Eurasia and plays an important role in stratigraphy of the Upper Viséan-Serpukhovian interval of the Lower Carboniferous (=Mississippian), is revised. The morphological characteristics of the genus and species were clarified and supplemented, details of the structure of the interseptal space and sutural apertures are clarified, and the stratigraphic and geographical distribution of the species is documented. A new foraminiferal species J. adtarusia Gibshman, Zaytseva and Stepanova, sp. nov. is described.

中文翻译：

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欧亚大陆上Viséan-Serpukhovian（密西西比河）上的Janischewskina Mikhailov属的有孔虫

摘要

修订了Janischewskinidae Reitlinger家族有孔虫属Janischewskina（1996年），该属在欧亚大陆广泛分布，在下石炭统（=密西西比纪）的上Viséan-Serpukhovian地层中起着重要作用。阐明和补充了属和物种的形态学特征，阐明了间隔间距和缝合孔的结构细节，并记录了物种的地层和地理分布。一个新的有孔虫物种J. adtarusia Gibshman，Zaytseva和Stepanova，sp。十一月 描述。