Two rhinoceroses engraved on the rock at El Macnusa (Acacus, Fezzan, Libya) (image resolution: 500 dpi). Fabrizio Mori (1925-2010) was the world-wide most prominent specialist who investigated this archaeological area for about 50 years. More detailed information about is available in “The Great Civilisations of the Ancient Sahara” (translated by B.D. Philips), Erma di Bretschneider, Roma, 1998.
