1884-1934 2009j-826 analysis anatomy antiquities biologicalevolution black classification congresses congrès congrèsblack davidson ethiopia excavations(archaeology) fossilhominids fossils geology gn284r571e1990 gn284z48h2009 histology hominidae hommefossile humanremains(archaeology) middleawash nariokotomeboy(homoerectus) paleontology pithécanthrope pleistocene stratigraphic