Nógrád Megyei Múzeumok Évkönyve XXV. (2001)

Természettudomány - Dr. Hír János: Új középső miocén rágcsálófaunák Észak-Magyarországról

Myoglis meini Eomyops oppligeri Keramidomys cf. mohleri Megacricetodon sp. Collimys sp. Anomalomys gaudryi The rieh mollusc fauna refers to the Laté Sarmatian (KÓKAY in HÍR et al 2001). Egerbocs An inactive gravel pit is found E from the village by the side of the road Tarnalelesz -Eger. Nonmarine molluscs were reported from this section by SZENTES (1959). In 2000 the pit was reinvestigated by János Hir and József Kókay and 500 kg sample was collected from a coarse grained sand layer bearing mollusc Shells. The sédiment is very rieh in reworked Early Badenian marine fossils, but produced only few rodent molars: Palaeosciunis sp. ? (Fig. 11.) Forsythia gaudryi. (Fig. 7.) Megacricetodon sp. (Fig. 46.) Democricetodon sp. The freshwater mollusc material is fragmentary and consists of few species (KÓKAY personal communication). The âge of this locality is uncertain. Systematical informations Palaeosciunis sp. Figs. 8., lO.and Palaeosciunis sp. ? Fig. 11. A large sized m 1-2 molar (2.77 x 3.12) was found at Egerbocs and 5 cheek teeth are known from Felsőtárkány 3/2 with smaller measurements (Ml-2: 1.71 x 1.99, p4: 1.68 x 1.57, ml: 1.75 x 1.88, m2: 1.95 x 2.05, m3: 2.32 x 1.92). The morphology refers to the récent Sciums vulgaris. The enamel is smooth. The first représentatives of the Sciurus genus appeared in the Pliocène (MN 14) and the Palaeosciunis species disappeared during the Early Miocène (MN 4) after the sensé of DE BRUIJN (1999). On the other hand there are data from Switzerland on the présence of Palaeosciunis in the MN 5 and MN 6 faunas (ENGESSER et al 1981, BOLLIGER 2000). The material of Felsőtárkány is certainly younger (MN 7 -8) and the présence of a tree squirrel is difficult to explain. Muscardinus sansaniensis (LARTET, 1851) Fig. 12. and Muscardinus aff. sansaniensis Figs. 13., 14. The morphological pattern of the only ml from Sámsonháza (Fig. 12.) is close to M. sansaniensis from Devinska Nova Ves (=Neudorf, =Dévényújfalu) (SCHAUB et ZAPFE, 1953), but more simple than M. cf. sansaniensis from Puttenhausen (WU, 1990) and more complex than M. aff. sansaniensis from Anwil (ENGESSER, 1972). The Ml molar from Mátraszőlős (Fig. 13.) and an Ml fragment from Felsőtárkány 3/2 refers to M. aff. sansaniensis. + + (Figs. 21., 22.) + + (Figs. 25., 26.) + - (Fig. 24.) '-"••• ;.- • :.-..+• •'. 4 ' + 242