Nógrád Megyei Múzeumok Évkönyve XX. (1995)

Tanulmányok - Természettudomány - Hír János: Felső miocén aprógerincesek Egyházasdengelegről

Description Ml Tl is mostly connected to T2 but is has no posterior spur. Tl bis and T3 bis are missing. T3 has a posterior spur on 2 molars. T6 and T9 are mostly connected. T12 is voluminous and seems protubérant from the posterior wall of the tooth. The T4-T-8 connection is varying: the typical Apodemus pattern (De Bruijn, 1976) with a wel developed T7 is found only in one specimen (95.96., Fig. 26.). The 3 roots are preserved only at 2 molars. The 4th tiny central root does not exist. M2 T3 is bigger, than Tl. The T3-T5 connection is missing, but T6-T9 are connected. In one toothcrown there is an accessory cusp between T3 and T6 (Ö5.99., Fig. 27.). T7 is better developed than the homologuous conelets in Ml. T12 is big and forms a posterosinus. ml Tina is well devolped and isolated. The anteroconid is more or less symmetrical with divided cusps. The anteroconid is not connected either to he metaconid or to the protoconid. No longitudinal spur on the entoconid. The terminal heel is oval. The labial cingulum is narrow, the Cl is always presented with varyng size. C2 and C3 are small or incipient. m2 The anterior and the posterior widths are identical, or the anterior one is a bit larger. The anterolabial cuspid is voluminous but less developed than the protoconid. The labial cingulum is continuous with accessory cusps of various size. The terminal heel is oval or lens-shaped. The longitudinal spur is missing. Comments The détermination is not without risk because the material does not reach the statistic mass. The most important arguments of the classification are the following: - the relative majority of the undeveloped T7 among the M1-M2 molars; - the small measurements, which are very similar to the data of Parapodemus lugdunensis from Kohfidisch (Bachmayer et Wilson, 1980) and from Eichkogel (Daxner-Höck, 1977) and from Crevillente 2, Crevillente 4/b (Martin Suarez et Freudenthal 1993). The measurements of the Parapodemus gaudryi from Pikermi-Chomateri and Polgárdi (De Bruijn, 1976) are larger. The P. gaudryi-barbarae material from the Teruel-Alfambra region (Weerd, 1976) is also of greater measurements. Family: Cricetidae Rochebrune, 1863 Subfamily: Cricetinae Murray, 1866 The morphological nomenclature is after Mein et Freudenthal (1971 a, 1971 b). The measurements are after Hír (1994) genus: Kowalski a Fahlbusch, 1969 Kowalskia cf. fahlbuschi Bachmayer et Wilson, 1970. 178