Tetralithus ovalis Stradner, 1963
Sissingh, W. 1977. Biostratigraphy of Cretaceous calcareous nannoplankton. Geologie en Mijnbouw. 65(1): 37-65.
Stradner, H. 1963. New contributions to Mesozoic stratigraphy by means of nannofossils. Proceedings of the Sixth World Petroleum Congress. Section 1 Paper 4: 167-183.
Tetralithus ovalis
Stradner, 1963
Turonian
Klafterbrunn, Austria