Globuligerina oxfordiana (Grigelis, 1958) – revision of the first planktonic foraminifera discovered in the Upper Jurassic of Lithuania

The article presents the self-revision and re-description of the first planktonic foraminifera Globuligerina oxfordiana (Grigelis, 1958) discovered in the Upper Jurassic of Lithuania. The original article published in 1958 in a Russian periodical (Moscow) is translated, supplied by additional comments, and illustrated by SEM laser electronic micrographs.