The comparison of biocoenosis and thanatocoenosis at three observational stations, west of the peninsula Istria, in littoral of the Adriatic sea, has shown a suprisingly low similarity between them. ...The difference seems to be due to ecological changes during the deposition of thanatocoenosis (approximately in thelast hundert years). These ecological changes can not be studied in thanatocoenosis because of a very high degree of bioturbation that destroyed stratification and mixed all the skeletal particles. Lateral transport of skeletal particles seems to be of minor importance.
The peaks of Menina with Vivodnik, Snežni vrh, Globače, Vrtačnik, Ovčji stan,Vetrnik and Petelinjek, as well the area between them consist of Cordevolian (Lover Carnian, Triassic) reef limestone and ...partly dolomitic limestone, and dolomite with corals Margarophyllia capitata (Münster), Margarosmilia septanectens (Loretz) and Tropidendron sp., sponges Solenolmia manon (Münster) andAlpinothalamia slovenica (Senowbari-Daryan), microproblematicum Ladinella porata (Kraus & Ott) and Plexoramea cerebriformis (Mello). The reef limestone of Menina has the same faunistic characteristics with the same species of corals,sponges and microproblematica as the Cordevolian reef limestone in the northern Julian Alps, which is an indication of a unique sedimentation region for the two areas on the carbonate plarform.areas on the carbonate platform.
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