The hand ax and other Acheulian artifacts at Kokiselei may have been tools before their time.
这种手持石斧以及Kokiselei的其它阿舍利文化的古器物也许早在他们的时代之前便用作工具了。
2
On the northwest shoreline of Kenya's Lake Turkana, at a site known as Kokiselei, researchers previously found both Oldowan and Acheulian tool types in the same 1.76-million-year-old sediments.