Searching for and finding fossils in such a large area is another difficult problem. One solution has been to organise all persons present into a group to sweep a designated area. Richard Leakey devised a method that produced better results: he organised and trained a search team of Kenyans, which became known as "the "hominid" gang", under the leadership of Kamoya Kimeu—"hominid" was then the term use for the present-day meaning of "hominin". They found the majority of the 200-plus hominin fossils discovered to date.