The occurrence of microfossil assemblage represented by calpionellids in close association with benthic foraminifera and encrustingCrescentiella morronensisis reported for the first time from the Upper Tithonian of NE Serbia. The biostratigraphic and sedimentological investigations were carried out on a 250 m thick carbonate succession in Jelenska Stena quarry cropping out along the Danube River Gorge in the border area of Serbian Carpatho–Balkanides and Romanian Southern Carphatians. On the basis of determined benthic foraminiferal taxaTextulariasp. cf.T. bettenstaedtiandEverticyclammina praekelleriin the lower part of the succession and calpionellid association dominated by the representatives of calpionellid generaTintinnopsella, CrassicollariaandCalpionellathe carbonate succession is assigned to the Upper Tithonian. The scarcity of calpionellid zonal species prevents the nominal zones being recognized. Petrographic analysis of thin-sections led to the recognition of three basin microfacies types: bioclastic wackestone, bioclastic peloidal wackestone/packstone and mudstone. These microfacies characterize the SMF 3 and SMF 4 which indicate deposition in slope and toe-of-slope environments. This study extends the palaeogeographical distribution of Upper Tithonian calpionellids along the northern Tethyan margins. The investigated carbonate succession is compared with coeval strata from other northern Tethyan regions.

Stratigraphic/palaeontological geosites of Stara Planina Mountain in east Serbia are well developed in the area of Serbian/Bulgarian state border, where with this occassion, three sections of exeptional geological and scientific interest are selected: Jelovica, Rosomač and Senokos. These geosites represent the important localities for study of Triassic and Jurassic terrigene-carbonate deposits, for which the scientific value from the domains of palaeontology, stratigraphy and sedimentology is widely known. The aim of this work is to represent the main scientific arguments for inventory and protection of detached transborder geological sites that are unique according to their composition and content.[Projekat Ministarstva nauke Republike Srbije, br. 176008

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Aleksandrovac Zupa represents the example of territorial area with composite geological structure and furthermore compound geotectonic framework. Due to the character of some formations, framework and time relation of deformation, these areas belong among the most compound on the Balkan Peninsula. On its territory, the big and composite structural-facies zones are being confronted and became imbued. In a stratigraphic point of view, the largest extend have the Miocene deposits that overlain the crystalline schists of Proterozoic.

The possibilities for stratigraphical precision between the Upper Jurassic and the Lower Cretaceous in pelagic development are considered for the locality of Dedine stream. Nearby the city of Golubac, is observed and described the profile that starts with Paleozoic schists which are overlained with Oxfordian/Cimeridgian limestones with cherts, then follows the beds of "Lithographic limestones" and marlstones with Tithonian/Berriasian ammonites