Cassiopid gastropods from the cretaceous of Western Serbia

Abstract

3 Abstract. Three species of Cassiopidae (Cerithioidea, Gastropoda) are described from outcrops in the vicinity of the villages Rasti{te and Mokra Gora in western Serbia. They occur in marly limestones of near shore shal- low water deposits. Earlier micropaleontological investigations have indicated an Albian-Cenomanian age. The species encountered are related to those present in deposits of the European margin of the Tethys and closest rela- tionships exist to those of the Armenian and Transcaucasian region. Our species can be placed in the genera Cassiope, Paraglauconia and Bicarinella. A new species Cassiope kotromanensis is erected. Assumptions about post-mortem shell transport and size sorting of gastropod shells were examined through statistical analysis.