Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 86. (Budapest 1994)

Hír, J.: Cricetus cricetus nanus Schaub, 1930 (Mammalia, Rodentia) finds from the Carpathian Basin

POLAND: Zabia (82) HUNGARY: Osztramos 2 (124) BOHEMIA: Chlum 6 (96) Somssich4i. 1 (128) SLOVAKIA: Kolinany 3 (100) ROMANIA: Betfia 10 (143) Vcelare 3b/

1 (109) RUSSIA: Akkulaevo 3 (147) Vcelare 4a/5 (110) Akkulaevo 2 (148) Vcelare 4a/7 (111) Vcelare 4e (113) Vcelare 5 (115) Vcelare 6 (116) All these localities produced Allophaiomys faunae without progressive Microtus and Pitymys species. Cricetus cricetus nanus has a remarkable stratigraphical importance for this reason. It existed only for a relatively short period. We can explain the absence of the subspecies in Western and Southern Europe probably by climatic and ecological factors. Cricetus cricetus nanus possibly needed steppe environment. In view of this it is rather difficult to explain its absence from the Eastern European Plain. There are only two faunae in the Uralian region (Fig. 19) confirming our idea (AGADZANIAN 1977, SUHOV 1970). We can presume the presence of Cricetus cricetus nanus in Eastern Europe possibly determined as Cricetus sp. or Mesocricetus sp. In Hungary there are two Cricetus cricetus nanus localities with a problematic stratigraphical situation. One of them is the 12th layer of the Tarkő Rock-shelter (Hungarian Natural History Museum: V. 64. 778 "Allocricetus bursae"). In this material two mandibles were found during the revised investigation of the Allocricetus teeth (HÍR 1989). The fossilization strongly differs Fig. 11. Scatter diagram of Ml molars. 2 = Osztramos 14, 3 = Osztramos 8, 4 = Betfia 2, 5 = lower border of the length of the Ml of Cricetus cricetus praeglacialis in Betfia 2, 6 = lower border of the length of the Ml of Cricetus runtonensis after PRADEL (1988) Fig. 12. Scatter diagram of M2 molars. For explanation see Fig. 11