Australopithecine

An extinct African hominin belonging to Australopithecus or, in some classifications, Paranthropus. Australopithecines combined habitual bipedal walking with relatively small brains.

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Hominin: A human or extinct species more closely related to humans than to chimpanzees. Australopithecines are early members of the hominin lineage.
Australopithecus afarensis: An East African australopith species that lived roughly 3.9 to 2.9 million years ago. Its fossils include Lucy and the Laetoli footprints.
Laetoli footprints: A trail of fossilized footprints in Tanzania, made by hominins about 3.66 million years ago. The prints provide direct evidence of australopithecine bipedal walking.
Taung Child: The juvenile skull of Australopithecus africanus discovered in South Africa in 1924. Its recognition as an early hominin helped establish African origins for human evolution.
Ardipithecus: An early hominin genus known from fossils dating to about 5.8 to 4.4 million years ago. It predates australopithecines and preserves a different mix of climbing and walking adaptations.
Bipedalism: Locomotion on two legs, whether habitual or occasional. Habitual bipedalism distinguishes australopithecines despite their small brains.
Australopithecus africanus: A South African australopith species known from fossils including the Taung Child. It established the early South African fossil record of australopithecines.
Pelvis: The bony structure connecting the spine to the lower limbs. Australopithecine pelvic fossils reveal adaptations for upright walking.
Raymond Dart: An Australian anatomist who described Australopithecus africanus from the Taung skull. Dart’s interpretation challenged prevailing expectations that human ancestors came from Asia.
Homo habilis: An early Homo species known from African fossils dating to roughly 2.4 to 1.4 million years ago. Its larger brain and association with stone tools contrast with many australopithecines.