Tassili-n-Ajjer , an area in Southern Algeria, in which prehistoric rock paintings (and many engravings) were first discovered in 1910 and subsequently in the 1930s and 1960s.
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The rock paintings of Tassili fall into a number of important styles that form a chronological order. Some of the earliest known as the Round heads (describing their typically human forms) are followed by naturalistic " Bovidian paintings showing numerous pastoral scenes with cattle and shepherds with bows. The next phase is characterized by the more schematic figures of the so-called horse and Camel periods made when the wheel about 3,000 years ago to appeared for the first time.
The engravings include those of an important early art school, the " Naturalistic Bubaline,” which was roughly contemporary with the Round Head paintings. These artists used a remarkably naturalistic style to depict domestic cattle and wild animals, including the now-extinct giant buffalo.