Complex sentence: The local inhabitants used tools made of stone (especially jasper from the southern regions of the Urals), bone and wood, but baked clay vessels decorated with broken or wavy lines were also unearthed.
Split into simpler sentences: The local inhabitants used tools made of stone (especially jasper from the southern regions of the Urals), bone and wood. Baked clay vessels decorated with broken or wavy lines were also unearthed.