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    STUDIA BIOLOGIA - Issue no. 2 / 2002  
         
  Article:   ADDITIONAL TAXA WITHIN THE SILICEOUS MICROFLORISTIC ASSEMBLAGES FROM THE BĀRZĂVIŢA II QUARRY (ARAD COUNTY, ROMANIA).

Authors:  OVIDIU BARBU, VLAD A. CODREA. 		 
       
         
  Abstract:  The deposits of the lower tuffaceous-diatomaceous complex, studied on a log from the Bārzăviţa II quarry, contain a rich assemblage of siliceous microorganisms including: diatoms, silicoflagellates, ebridians, sponge spicules, dinoflagellates, chrysomonadines and phytolites. The aim of this study was to report the presence of three additional taxa within the associations: one belonging to ebridians (Podamphora sp.) and the others to dinoflagellates (Carduifolia gracilis Hovasse and Calicipedinium quadripes Dumitrică). Two of these taxa (Podamphora and Carduifolia) were reported a long time ago from the Zărand Basin, but not from the Bārzăviţa site. Therefore, this discovery brings them to interest again. The third taxon (Calicipedinium) is a novelty, for both the Bārz¾vißa II quarry and the whole sedimentary Middle Miocene Zărand Basin.  
         
     
         
         
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