New Congerian Species and Their Similarity with Congeria banatica from the Pannonian Sediments in Northern Croatia

Study of the Pannonian sediments in the southwestern part of the Medvednica Mts. (Fig. 1) and their relationship with underlying Sarmatian deposits, revealed two entirely new forms of the genus C o n g e r i a . GORJANOVI∆-KRAMBERGER (1890) noticed and briefly described a new congerian form from the “Praepontian white marls” from the VrapËe locality, but he did not establish and name a new species, because of the small number of specimens and their poor preservation. During this study, a collection of approximately 20 specimens of this form has enabled the establishment of a new species, Congeria baschi n.sp., which can be clearly identified and positioned in a stratigraphically narrow interval. The presumption has been made, that C . b a s c h i n.sp. represents the ancestral form of the forthcoming radiation of congerian species (see Fig. 10). SREMAC (1981) described C. vugroveci as a new species from the Upper Pannonian marls of Vugrovec in the southeastern part of the Medvednica Mts. (NorthNew Congerian Species and Their Similarity with Congeria banatica from the Pannonian Sediments in Northern Croatia