 It has also been suggested that fossils attributed to Australopithecus anamensis and Au. afarensis  had specialized wrist morphology that was retained from an earlier knuckle-walking ancestor.
<coherence>  It has also been suggested that fossils attributed to Australopithecus anamensis and Au. afarensis  had specialized wrist morphology that was retained from an earlier knuckle-walking ancestor.
 Fossils attributed to Australopithecus anamensis and Au. afarensis had specialized wrist morphology that was retained from an earlier knuckle-walking ancestor.