Stanford,Craig B.(2012).„Chimpanzees and the Behavior ofArdipithecus ramidus*”.Annual Review of Anthropology41: 139.DOI:10.1146/annurev-anthro-092611-145724.»Is Ardipithecus a hominin?—that question will likely dominate the paleoanthropological debate over this fossil taxon for years to come.«
Perlman,David(July 12, 2001).„Fossils From Ethiopia May Be Earliest Human Ancestor”.National Geographic News.Pristupljeno July 2009.»Another co-author is Tim D. White, a paleoanthropologist at UC-Berkeley who in 1994 discovered a pre-human fossil, named Ardipithecus ramidus, that was then the oldest known, at 4.4 million years.«