Considering these points, in the changes such as MONONOBE no Obito, MONONOBE no Muraji, FURU no Muraji and FURU no Sukune, it is unknown when he changed from Mononobe to Furu in a range of one year.
つなぎ合わせると、物部首、物部連、布留連、布留宿禰という変遷で、物部から布留に改めた時期が1年間の幅で不明となる。