Bøker av Romuald Schild

Faunal and plant remains found in the excavations after the seasonal rains, and by digging wells after the at Holocene-age settlements, dating between 9500 and playa became dry, water could still be obtained during 5000 radiocarbon years ago, indicate that rainfall during most, if not all, of the dry season.

there was essentially no change for several hundreds of thousands of years, and it was during the Middle THE MODERN ENVIRONMENT Paleolithic, and probably early in that stage, that the The two depressions of Bir Tarfawi and Bir Sahara East are modem form of human being first appeared in Africa (Stringer and Andrews 1988).