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Oldowan tools could also have been used for preparing hides.
Hides must be cut by slicing, piercing and scraping it clean of residues. Lawrence Keeley, following in the footsteps of Sergei Semenov, conducted microscopic studies (with a high-powered optical microscope) on the edges of tools manufactured de novo and used for the originally speculative purposes described above.
The system included choppers, scrapers, and pounders.
However, more recent classifications of Oldowan assemblages have been made that focus primarily on manufacture due to the problematic nature of assuming use from stone artefacts.
Abbevillian is a currently obsolescent name for a tool tradition that is increasingly coming to be called Oldowan.
The label Abbevillian prevailed until the Leakey family discovered older (yet similar) artifacts at Olduvai Gorge (a.k.a.
Both technologies are occasionally found in the same areas, dating to the same time periods.
This realisation required a rethinking of old cultural sequences in which the more "advanced" Acheulean was supposed to have succeeded the Oldowan.
Such uses are attested by characteristic microscopic alterations of edges used to scrape wood.Most early European sites yield "Mode 1" or Oldowan assemblages.The earliest Acheulean sites in Europe only appear around 0.5 mya.He found that the marks were characteristic of the use and matched marks on prehistoric tools.Studies of the cut marks on bones using an electron microscope produce a similar result.