Nógrád Megyei Múzeumok Évkönyve XX. (1995)

Tanulmányok - Természettudomány - Hír János: Felső miocén aprógerincesek Egyházasdengelegről

Late miocène Microvertebrata from Egyhazasdengeleg (North Hungary, Nógrád County) János Hír et Lukács Gy. Mészáros Introduction The first author noticed the présence of microvertebrate fossils in the sand mine of the village Egyhazasdengeleg in March, 1987. The field activity took place from 1987 to 1993. During its course, 5 metric tons of sand were sieved and washed. Up to the présent, only a preliminary report (Hír, 1989) and a populär article (Hír, 1988) have been published on the first insectivora and rodent finds. The aim of this paper is to give the accurate description and biostratigraphic évaluation of the fauna. The élaboration of the Insectivora is by Mészáros L. Gy, the study of the Lagomorpha and Rodentia is by Hír J. The matériái is housed in the Natural History Collection of the Nógrád County Museums in the Municipal Museum of Pásztó. The locality The small village Egyhazasdengeleg (Edyha: zashdengeleg) is situated in the Southern foothill region of the Cserhát mountains (Fig. 1.) not far from the Late Neogene vertebrate localities of Gödöllő (Mottl, 1939) and Hatvan (Gaál, 1943). An inactive sand mine сап be found at the Southwestern margin of the village exposing Miocène (Upper Pannonian) cross-bedded sand and Pleistocene sédiments above it. Fossil permafrost phenomena сап be observed in the overlying beds (Fig. 2.). The occurence of the vertebrate fossils was sporadic in the white coloured and the reddish yellow sand layers. Local or fine-stratigraphical enrichment of the finds was not found. The teeth are not well preserved, they are very easy to break. Beside the vertebrata, the cross-bedded sand produced a rieh molluscan fauna, too, wich is under élaboration by dr. Endre Krolopp (Hungárián Geological Institute). After his permission (Krolopp, 1995 in letter) we give the preliminary list of the mollusc gênera: cockles: Margaritifera water snails: Theodoxus Unio Valvata Pisidium Viviparus Dreissena Bithynia Emmericia Prososthenia Melanopsis Lymnaea Planorbarius Anisus land snails: Carychium Succinea Vertigo Gastrocopta Clausilia Norsieckia Triptychia Strobilops Discus Helicodiscus Aegopis Aegopinella 169