Facies 1-14. DOI: 10.1007/s10347-005-0040-2
New associations of Carnian gastropods from Mežica region in the Karavanke Mountains of Slovenia .

Kaim, A., Jurkovšek, B., and Kolar-Jurkovšek, T.

Abstract  Two gastropod assemblages from the Carnian (Upper Triassic) Raibl Beds of the Mežica region ( Karavanke Mountains , Slovenia ) are described. The almost monospecific, older assemblage from Mežica Mine was found as a thin shell pavement in the clastic sequence. This association apparently originated during a period of reduced sedimentation. The younger assemblage from Helena Creek was found at the upper surface of an oolitic and oncoidal limestone and represents a more diversified fauna of a crinoid/coelenterate/polychaete meadow. Together, both assemblages contain 11 gastropod species. Five of them are left in open nomenclature, two are known from other localities in the Alps , and the remaining four are new. The new species are Sloeudaronia karavankensis (Skeneidae), Helenostylina mezicaensis (Coelostylinidae), Ampezzopleura slovenica and Striazyga crnaensis (Zygopleuridae). Two new genera, Sloeudaronia (Skeneidae) and Helenostylina (Coelostylinidae), are described.