Ar. ramidus was first identified in 1994 from Aramis, Ethiopia. The known fossil material is between 4.5 and 4.2 million years old. The most informative specimen is the partial skeleton ARA-VP-6/500, known as "Ardi".
Have Sahelanthropus and Orrorin been written out of existence?
A big argument about the so-called savanna theory comes with a surprising claim about the earliest possible hominin fossils.
An in-depth look at the pelvic reconstruction of Ardipithecus
The pelvic anatomy of Ardipithecus ramidus may give clues about the posture and locomotion of this ancient species.
Data access to fossil hominins, reflecting on the NSF policy
In a post from 2005, I reflect on why access to data from fossil hominins is of central value to progress in paleoanthropology.
Ardipithecus ramidus remains from a second field region, As Duma
New research from Sileshi Semaw and coworkers describes new fossils between 4.5 and 4.3 million years old.