The Late Oligocene rodent faunas of Canales (MP28) and Parrales (MP29) from the Loranca Basin, Province of Cuenca, Spain

Abstract

Two rodent faunas from the Upper Oligocene fluvial sediments of the Upper Detrital Unit of the Loranca Basin are described. The oldest fauna of Canales contains lssiodoromys limognensis and is correlated to MP28; the other, more modern fauna of Parrales contains I. pseudanaema and it is correlated to MP29. The cricetid genera Adelomyarion Hugueney, 1969 and Allocricetodon Freudenthal, 1994 are reviewed and the latter one is considered to be a junior synonym of the former one. The faunas are compared to other Spanish late Oligocene faunas such as Vivel de Río, Hinojosa de Jarque, and Sayaton 1 and 6. The resulting succession is correlated to the most important remaining European late Oligocene localities, and the biochronological subdivision of this period is discussed.