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New thin-sections from the Upper Cretaceous Gosau Group of Brandenberg, Tyrol, Austria, yielded well-preserved specimens of the calcareous alga Permocalculus gosaviensis SCHLAGINTWEIT. Microfacies are foraminiferal-algal wackestones; stratigraphy is Upper Turonian (? Lower Coniacian). It is shown that the original description was based on oblique sections leading to the incorrect assumption of a piryform segment morphology. Instead, P. gosaviensis is a representative of Permocalculus of the group with constrictions/swellings along the segments (waxing-and-waning type). Permocalculus nikolapantici RADOIČIĆ from the Upper Turonian of Serbia is considered a junior synonym of Permocalculus gosaviensis SCHLAGINTWEIT.

Key words: Calcareous algae, systematics, micropalaeontology, Upper Cretaceous, Gosau Group, Northern Calcareous Alps, Austria.