Barbara Rzebik-Kowalska. Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, Sławkowska 17, 31-016 Kraków, Poland rzebik@isez.pan.krakow.pl

Barbara Rzebik-Kowalska is a professor in the Institute of Systematics and Evolution of Animals at the Polish Academy of Sciences in Kraków (Poland). She graduated from the Jagiellonian University (Kraków) and received her PhD on the ground of the thesis "Studies on the diet of the carnivores in Poland" in 1973. She has published numerous papers and books concerning recent and fossil (Miocene – Quaternary) mammals (especially insectivore mammals) of Europe, as well as of the Middle and Far East, the Greater Antilles, and of North Africa. For five years (1979-1983) she worked with her husband, Kazimierz Kowalski, in Algeria where they lectured and collected extensive materials of mammals publishing the book "Mammals of Algeria" in 1991.

Leonid I. Rekovets. University of Environmental and Life Sciences of Wrocław, Chełmoński 38c, 51-630 Wrocław, Poland
and
National Museum of Natural History, B.Khmelnicki 15, 01030 Kiev, Ukraine leonid.rekovets@up.wroc.pl

Leonid I. Rekovets is a professor in the University of Environmental and Life Sciences of Wroclaw (Poland) and in the Institute of Zoology and Museum of History and Nature in Kiev (Ukraine). He graduated from the Gogol University in Nizhyn (Ukraine), faculty Biology. He specializes in paleotheriology (faunistics and systematics of small mammals of the Neogene and the Pleistocene of Europe) as well as in biostratigraphy and paleogeography. He is the author of five monographs and 200 scientific articles. He has found and studied a lot of localities of theriofauna in Ukrainie.