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2. England's Oldest Human Bone Steps Out;Aldhous;Science,1994
3. Alas, poor Northarctus;Alexander;Natural History,1992
4. American Family Tree Gets New Root;Amato;Science,1993
5. Three New Human Skulls from the Sima de los Huesos Middle Pleistocene Site in Sierra de Atapuerca, Spain;Arsuga;Nature,1993