| Summary: | The existence of protected spaces interpreted in the archaeological sphere like being intended for the cultivation is confirmed by a sedimentologic approach. The aim of this latter, based on micropalaeontological witness, is also to revelate the formation of these soils. Sedimentological samples from the pediment lake deposits and from the preserved soils of agglomerated compounds on the cliff edge of Khneivissa (Dhar Oualata, Hodh, Mauritania), have delivered identical microfaunic assemblages (ostracoda). This identity between ostracodic assemblages can only be explained by an anthropic dressing of lacustrine sediments from the cliff foot in order to constitute a cultivated soil on the edge of palaeozoic sandstone relief. These artificial soils protected from the wind erosion by dry-stone walls form a set of gardens in the immediate vicinity of village settlements.
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