Los australopitecinos (Australopithecina) son una subtribu de primates hominoideos, propuesta para agrupar a los géneros Ardipithecus, Kenyanthropus, Australopithecus y Paranthropus. Sin embargo no hay acuerdo entre los científicos, pues varios opinan que los géneros citados forman parte de la subtribu Hominina, junto con el género Homo.

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Australopithecines are generally all species in the related Australopithecus and Paranthropus genera, and it typically includes Kenyanthropus, Ardipithecus, and Praeanthropus. All these related species are now sometimes collectively classified as a subtribe of the Hominini tribe called Australopithecina. They are the extinct, close relatives of humans and, with the extant genus Homo, comprise the human clade. Members of the human clade, i.e. the Hominini after the split from the chimpanzees, are now called hominins (see Hominidae; terms "hominids" and hominins). The terms australopithecine, et al., come from a former classification as members of a distinct subfamily, the Australopithecinae. Members of Australopithecus are sometimes referred to as the gracile australopithecines, while Paranthropus are called the "robust australopithecines". The australopithecines occurred in the Plio-Pleistocene era and were bipedal, and they were dentally similar to humans, but with a brain size not much larger than that of modern apes, with lesser encephalization than in the genus Homo. Humans (genus Homo) may have descended from australopithecine ancestors and the genus Ardipithecus is a possible ancestor of the australopithecines.

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