Calcareous arenitic rocks exposed in the Dopplerhütte and Tulbingerkogel quarries northwest of Vienna were studied to establish their stratigraphic age. The whole succession is a part of the "Northern Zone" - the Tulbingerkogel thrust sheet - which represents the external part of the Wienerwald Flysch. These rocks were regarded commonly as Neocomian, however the analyses of the foraminifera within the intercalations of marly limestones proved the presence of Globorotalia sp. and assemblages with the index species Spiroplectinata annectens (Parker et Jones). Therefore, the depositional age of the studied rocks can be estimated neither older than Albian nor younger than Cenomanian. This indicates that also during the Albian calcareous sedimentation persisted within the northernmost unit of the Rhenodanubian Flysch Zone, which probably represented a detached part of the southern slope of the European continental margin and/ or the Penninic Ocean.