Evolutionary lineage of Spermophilus superciliosus - S. fulvus (Rodentia, Sciuridae) in the quaternary of the Dnieper area: An ability of a biostratigraphical implication

Spatial distribution of ground squirrel taxa (both species and subspecies) is much more affected by geographical barriers, than those of most of the rodents. It makes the Pleistocene ground squirrels an eminently suitable subject for palaeogeographical reconstructions.