The simple hierarchy of scientific places for Koobi Fora is the following: Koobi Fora is the region; the region is divided into fossil collecting areas (e.g., Area 102, 103, 140, etc.); within fossil collection areas there are archaeological sites (e.g., FxJj 1, FxJj 10, etc.) and hominin palaeontological localities, which are usually named after the National Museum of Kenya accession number assigned to the important bones found. For example, in Area 131 hominin skull KNM-ER 1470 was found. The fossils found here, including all the non-human ones, are assigned to the 1470 locality.