1-14. DOI: 10.1007/s10347-005-0040-2
New associations of
Carnian gastropods from Mežica region in the
Jurkovšek, B., and Kolar-Jurkovšek, T.
gastropod assemblages from the Carnian (Upper Triassic) Raibl Beds of the Mežica
) 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
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
, 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),