found in rounded chalk pieces on the Southeastern beach of the island Düne
Helgoland
North Sea Germany
Geological Time: Cretaceous Upper Cretaceous
the images are made by Dieter Ketelsen,
the material is provided by Peter Schumacher,
View of a specimen of Lenticulina marcki (Reuss, 1860)
The identification is based upon:
Franke, Adolf, 1925: Die Foraminiferen der pommerschen Kreide. Abh. Palaeont. Inst. Univ. Greifswald, Band 6, 1925, S. 2 to 96 Plate V, Fig. 27