Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 89. (Budapest 1997)

Hír, J.: Cricetus runtonensis solymarensis ssp. n. (Mammalia, Rodentia) from the Late Middle Pleistocene fauna of Solymár

m3. The morphology of this molar is extremely variable. 25 morphotypes were distinguished, but these are easy to describe on the basis of the variations of five morphological elements (Fig. 15). 3 morphotypes are common with the morphotypes of the C. praeglacialis-C. cricetus group, which refers to the 9% of the molars of Solymár. The "paramesolophid" is a frequent element of the m3 molars as well. It occurs in 60% of the teeth. The coexistence of the mesolophid - "paramesolophid" is found in 56% of the molars (Figs 16-17). The presence of the ectostylid is 35% . DISCUSSION The early scholars of the Solymár fauna described the hamster finds as a subspecies of Cricetus cricetus (KRETZOI 1946, JÁNOSSY 1986) but this determination cannot be confirmed by the results of the present author. The metrical characters of the material clearly demonstrate the relationship with Cricetus runtonensis (Figs 2-7). This species was the first large sized cricetid in the Early Pleistocene faunas of Hungary and Poland (PRADEL 1988). In Hungary the most abundant material of this species was found in the fauna of Somssich-hegy 2 (Nagyharsányhegy Phase) accompanied with Cricetus nanus. In the fauna of Villány 8 (Templomhegy Phase) the C. runtonensis disappeared, and it was substituted by the smaller sized Cricetus praeglacialis. The return of the C. runtonensis line in Hungary was found in the Late Middle Pleistocene faunas of Solymár, Pongor Hole (HÍR 1989) and Lök-völgyi Cave 8th layer (HÍR 1995) (Fig. 18). Fig. 16-17. Cricetus runtonensis solymarensis ssp.n.: 16 = m3 molar, morphotype 04210, 17 = m3 molar, morphotype 05221