Lucy belonging to the extinct species Australopithecus afarensis was discovered in northern Ethiopia in 1974, with about 40 % of her skeletal bones extant.
Certain species, like Australopithecus afarensis, lived in eastern Africa around 3 to 4 million years ago, walked upright on two legs, and had ape-like faces.
In a glass case at the vault's centre, resting on blue velvet, is Little Foot, the near-complete remains of a member of the species Australopithecus prometheus.
It’s hard to eliminate Australopithecus as a possibility without a more complete skeleton, but the shape of the newly-found jaw and teeth showed some similarity to the teeth of early Homo erectus -- more so than Homo habilis.