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Tim D. White (born August 24, 1950) is an American paleoanthropologist and Professor of Integrative Biology at the University of California, Berkeley.He is best known for leading the team which discovered Ardi, the type specimen of Ardipithecus ramidus, a 4.4 million-year-old likely human ancestor.
Ardipithecus ramidus is a species of australopithecine from the Afar region of Early Pliocene Ethiopia 4.4 million years ago (mya). A. ramidus , unlike modern hominids , has adaptations for both walking on two legs ( bipedality ) and life in the trees ( arboreality ).
Ardi (ARA-VP-6/500) is the designation of the fossilized skeletal remains of an Ardipithecus ramidus, thought to be an early human-like female anthropoid 4.4 million years old. It is the most complete early hominid specimen, with most of the skull, teeth, pelvis, hands and feet, [ 1 ] more complete than the previously known Australopithecus ...
Ardipithecus ramidus was discovered by Tim White in 1992 at Aarmis in Middle Awash. The initial assemblage was made up of 13 dental fragments, some cranial fragments, some postcranial fragments, including from the radius and ulna. Since, over 100 total specimens have been discovered from 36 individuals.
Like later hominins, Ardipithecus had reduced canine teeth and reduced canine sexual dimorphism. [4] In 1992–1993 a research team headed by Tim White discovered the first A. ramidus fossils—seventeen fragments including skull, mandible, teeth and arm bones—from the Afar Depression in the Middle Awash river valley of Ethiopia. More ...
The find was overshadowed by Tim D. White's 1995 discovery of Ardipithecus ramidus, which pushed back the fossil record to . In 2000, Martin Pickford and Brigitte Senut discovered, in the Tugen Hills of Kenya, a 6-million-year-old bipedal hominin which they named Orrorin tugenensis.
He has been instrumental in the discoveries of the type specimen (principal reference fossil) for Australopithecus garhi and Ardipithecus kadabba (both discovered in 1997), and he has also found fossil specimens of Ardipithecus ramidus, Australopithecus afarensis, and species of Homo including Homo erectus, as well as Homo sapiens.
Between 1992 and 1994, a team led by paleoanthropologist Tim White discovered the first Ardipithecus ramidus (nicknamed "Ardi") fossil in the Middle Awash area of Ethiopia, dating to 4.4 million years ago. Subsequently, 100 fossil specimens of Ardi were uncovered.