Geological Time:
the image is published under
CC BY-NO-SA in the World Foraminifera Database
View of a specimen of Lepidosemicyclina thecideaeformis (Rutten, 1911)
The identification is based upon:
, : Rutten, L. M. R. (1911). On Orbitoides in the neighboorhood of the Balik Papan Bay, East-coast of Borneo. Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen. 13(2): 1122-1139. Plate , Fig.