Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 90. (Budapest 1998)

Hír, J.: Cricetids (Rodentia, Mammalia) of the Early Pleistocene vertebrate fauna of Somssich-hegy 2 (Southern Hungary, Villány Mountains)

protoconid-paraconid. Wp - posterior width of the toothcrown. In Ml and M2 molars, it was measured across the hypocone-metacone, or across the hypoconid-metaconid in ml-m2 molars. This measurement was not taken in M3 and m3 molars. W max - the larger one from the Wa and Wp measurements of the m2 molars. During the statistic treatment of the data the following parameters were computed: n - sample size; min. - the minimal measurement; max. - the maximal measurement: X arithmetic mean; median - median: SD - standard deviation; V - coefficient of variation; K - 95% confidence interval of the arithmetic mean (+ -); V'-IOOR/M where R is the difference between max. and min., and M is the mid-point between max. and min. (FREUDENTHAL & CUENCA BESCOS 1984). The results are presented in Tables 7-28 and in the scatter diagrams (Figs 2-25). The statistic morphological investigation is based on the nomenclature of MEIN & FREUDENTHAL ( 197 In, b). The creation of the different morphotypes is demonstrated on the Figs 26-32. The numerical data of the morphotype-analysis is given in Tables 1-6. For comparison, I quote the results of my previous investigations (HÍR 1997c/) on the morphology of the Recent C. cricetus from Hungary and Early Pleistocene C. praeglacialis from Villány 8 and on C. runtonensis solymarensis (HÍR 1997/>) from Solymár. Among the comparative samples, Villány 8 is the type fauna of the Templom-hegy phase, which is the terminal unit of the Early Pleistocene in the traditional Hungarian Pleistocene vertebrate stratigraphical system (JÁNOSSY 1986, VAN DER MEULEN 1973). Recently KORDOS (1993) put Villány 8 into the Mimomys savini Partial Range Zone in his new biochronological system. The fauna of Solymár is correlated with the Late Middle Pleistocene on their basis of the evolutionary status of the Arvicola material (HEINRICH 1982, 1987). SYSTEMATIC DESCRIPTION Order Rodentia BOWDICH, 1821 Family Cricetidae ROCHEBRUNE, 1883 Subfamily Cricetinae MURRAY, 1866 Genus Allocricetus SCHAUB, 1930 Allocricetus bursae SCHAUB, 1930 The presence of this species was verified during the detailed biometrical study. As another result of this work we have to delete the Cricetulus sp. from the faunal list of JÁNOSSY (1983, 1986, 1990). The preliminary determination of this taxon was based on a traditional statement of the earlier Hungarian literature. Cricetulus was regarded as a typical element in the Nagyharsány-hegy phase by KRETZOl (1956) Some Pleistocene Allocricetus populations from the Carpathian Basin were studied by HÍR (1989. 1993). The comparison with recent Cricetulus materials is given by HÍR ( 1994c/). The scatter diagrams (Figs 8-13) were plotted using the data of these studies. The diagrams demonstrate that the Allocricetus bursae population of Somssich-hegy 2 has really small size, but those are closer to other Allocricetus samples than to the investigated Cricetulus populations.