We have been dating for 5 years
Given the fragmentary nature of the remains, other scientists have been skeptical of these claims so far (Aiello and Collard 2001). 2004) has found further evidence of bipedality in the fossil femur.
This species was named Australopithecus ramidus in September 1994 (White et al.
Its finders have claimed that Orrorin was a human ancestor adapted to both bipedality and tree climbing, and that the australopithecines are an extinct offshoot.
The field of science which studies the human fossil record is known as paleoanthropology.
It is the intersection of the disciplines of paleontology (the study of ancient lifeforms) and anthropology (the study of humans).
Later fossil finds indicated that Ramapithecus was more closely related to the orang-utan, and new biochemical evidence indicated that the last common ancestor of hominids and apes occurred between 5 and 10 million years ago, and probably in the lower end of that range (Lewin 1987).
Ramapithecus therefore is no longer considered a hominid.