QUARRY (NORTH-EASTERN TRANSYLVANIA, ROMANIA)

Abstract. In this paper we refer to a study performed in the Cepari quarry, located north of Bistriţei Hills (NE Transylvania). According to our knowledge, this is the first biostratigraphic and palaeoecological study of the calcareous nannofossils from this section. The calcareous nannoplankton assemblage belongs to NN5 Zone, with Sphenolithus heteromorphus. According to Martini (1971) this biozone characterizes exclusively the Upper Langhian- Lower Serravallian interval corresponding to the Lower Badenian in the Transylvanian Basin. The foraminiferal assemblages exclusively consist of planktonic species (e.g. Globigerinoides spp., Globorotalia spp. and Orbulina sp.), which belong to the Orbulina suturalis/Globoturborotalita druryi biozone (Early Badenian) of the Transylvanian Basin. Concerning the paleoecological data, these are supported by some paleoclimatic-paleoecological indicator forms of calcareous nannofossils and planktonic foraminifera