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488 CHATZOPOULOU et al. CAD. LAB. XEOL. LAXE 26 (2001) Figure 2. Stratigraphical sections of trench square D10 and N10. tids (plate II) as well. The glirids (plate III) are relatively few but well representative. The spalacids (plate III) are even fewer but also well representative. Only one tooth was found from the family of sciurids (plate I) (CHATZOPOULOU & VASILEIADOU, 1998). The chiropters and insectivors are under preliminary study. In the microfauna were also found few remains of amphibians, reptiles and fish, which could not be interpreted in this paper. The following taxa were found from Bear-cave: CHIROPTERA Rhinolophidae Rhinolophus sp. Miniopterus sp. Vespertilionidae Myotis sp. INSECTIVORA Soricidae Sorex sp. RODENTIA Sciuridae Spermophilus sp. Arvicolidae Arvicola terrestris (LINNAEUS, 1758) Microtus arvalis (PALLAS, 1778) Microtus nivalis (MARTINS, 1842) Pitymys cf. subterraneus Clethrionomys sp.
CAD. LAB. XEOL. LAXE 26 (2001) Preliminary report on the small mammal fauna 489 Muridae Apodemus mystacinus (DANFORD & ALSTON, 1877) Apodemus sylvaticus/flavicollis Cricetidae Cricetulus migratorius (PALLAS, 1773) Mesocricetus cf. newtoni Gliridae Dryomys nitedula (PALLAS, 1778) Muscardinus sp. Glis sp. Spalacidae Spalax cf. leucodon DISCUSSION-CONCLUSIONS The faunal list shows a remarkable abundance of the small mammals: 19 species belonging to 9 families. The LAC assemblage, only for rodents, shows a diversity of 14 species belonging to 6 families. Such a variable diversity is also common in recent faunas. The material from the Vraona cave near Athens does not show such diversity (RABEDER, 1995). The LAC microfauna has a very similar composition to that from the Smolucka cave in Southwest Serbia (DIMITRIJE- VIC, 1991). The LAC assemblage is compared to the material from the fissurefilling near Arnissa (MAYHEW, 1977) and the absence of Sisista sutilis, Lagurus l a g u r u s, Microtus guentheri and O c h o t o n a pusilla is observed. The absence of Sisista, Allactaga and Ochotona shows a less steppe environment in view of its presence in the fossil fauna from the Bacho Kiro cave in Bulgaria (KOWALSKI & NADA- CHOWSKI, 1982). The LAC-material compared to Middle Pleistocene faunas of Chios (STORCH, 1975) and Emirkaya-2 (MONTUIRE et al., 1994) is composed by species that show a much more advanced evolutionary stage. The provenance of the microfauna fossils is being discussed. Micromammals probably got into the cave from the surface through fissures with claysilt material. Some teeth and bones show traces of transportation by water. This observation related to the taphonomy of the macromammals could be the result of the increase of water mass surface flowing inside the cave. Finally, they could be the remains of meals of various predators-owls and others raptors that primarily feed on small mammals hunting over a variety of habitats and returning to the cave to digest and regurgitate their meals, and mammal carnivores which carried carcasse of their pray into the cave. Among the numerous bones and teeth, there were sometimes more or less complete mandibles, but no complete skull is found, which is characteristic for owl pellets. This source of origin is also supported by the presence of erosion on the enamel and dentine of many of the teeth due to digestion by predatory birds. Bats inhabited the cave. A small curved drain found in B11 indicates that some species of small mammals, dwellers of forests and rocky slopes could have visited seasonally the cave on their own. The composition of the micromammal fauna concludes a Late Pleistocene age. Most of the species show an advanced evolutionary stage. This conclusion is confirmed by the age that macromammal fauna indicates as well as by the absolute dating of ESR (KAMBOUROGLOU & CHAT-
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