ABSTRACT. The Mateiaş Limestone is a lithostratigraphic unit in the Braşov Series, a component of the eastern part of the Getic Nappes' cover (the Getic carbonate platform). Four main facies and their associated microfacies are identified in the Mateiaş Limestone in the Hulei-Mateiaş-Măgura area. A Kimmeridgian (possibly also Early Tithonian) age is assigned to the Mateiaş Limestone, based on the microfossil association identified in thin sections. The regional setting, as well as sedimentological and micropaleontological features, indicates deposition of these limestones in shelf margin and slope environments. The succession in the area studied corresponds to the lower-mid part of the carbonate succession developed in the more internal part of the eastern sector of the Getic carbonate platform (e.g. Piatra Craiului Mountains).