earliest skeletal evidence for anatomically modern humans modern and archaic human anatomical features hominid fossils earliest skeletal evidence for anatomically modern humans Au. sebida's position in the human family tree extinct hominin Australopithecus sediba modern and archaic human anatomical features earliest skeletal evidence for anatomically modern humans modern and archaic human anatomical features earliest skeletal evidence for anatomically modern humans earliest skeletal evidence for anatomically modern humans ancestor of the human lineage earliest skeletal evidence for anatomically modern humans direct evolutionary lineage Au. sebida's position in the human family tree extinct hominin Australopithecus sediba earliest skeletal evidence for anatomically modern humans extinct hominin Australopithecus sediba now-extinct human lineages direct evolutionary lineage earliest skeletal evidence for anatomically modern humans direct evolutionary lineage Au. sebida's position in the human family tree modern and archaic human anatomical features earliest skeletal evidence for anatomically modern humans modern and archaic human anatomical features Au. sebida's position in the human family tree