Complex sentence: The oldest known jewelry in the world consists of two perforated beads made from "Nassarius gibbosulus" shell discovered at Skhul in Israel and recently dated to between 100,000 and 135,000 years ago.
Split into simpler sentences: The oldest known jewelry in the world consists of two perforated beads made from "Nassarius gibbosulus" shells. These beads were discovered at Skhul in Israel, and were recently dated to between 100,000 and 135,000 years ago.