AL 129-1
Hominin fossil / From Wikipedia, the free encyclopedia
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AL 129-1 is a fossilized knee joint of the species Australopithecus afarensis. It was discovered in Hadar, Ethiopia by Donald Johanson in November 1973.[2][3][4]
Quick Facts Catalog no., Common name ...
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Catalog no. | AL 129-1 |
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Common name | Johanson's Knee[1] |
Species | Australopithecus afarensis |
Age | 3.4 mya |
Place discovered | Hadar, Ethiopia |
Date discovered | 1973 |
Discovered by | Donald Johanson |
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It is estimated to be 3.4 million years old.[1] Its characteristics include an elliptical Lateral condyle and an oblique femoral shaft like that found in humans, indicating bipedalism.