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Members of Australopithecus are sometimes referred to as the "gracile australopithecines", while Paranthropus are called the "robust australopithecines". [ 10 ] [ 11 ] The australopithecines occurred in the Late Miocene sub-epoch and were bipedal , and they were dentally similar to humans, but with a brain size not much larger than that of ...
A. anamensis and many more Australopithecus branches, Australopithecus cannot be consolidated into a coherent grouping without also including the Homo genus and other genera. The earliest known member of the genus, A. anamensis, existed in eastern Africa around 4.2 million years ago.
Homo rhodesiensis ("Broken Hill Cranium"): dated to 324,000 to 274,000 years ago.. The category archaic human lacks a single, agreed definition. [11] According to one definition, Homo sapiens is a single species comprising several subspecies that include the archaics and modern humans.
Paranthropus aethiopicus is an extinct species of robust australopithecine from the Late Pliocene to Early Pleistocene of East Africa about 2.7–2.3 million years ago. However, it is much debated whether or not Paranthropus is an invalid grouping and is synonymous with Australopithecus, so the species is also often classified as Australopithecus aethiopicus. [1]
[2] [5] The classification H. habilis began to receive wider acceptance as more fossil elements and species were unearthed. [2] In 1983, Tobias proposed that A. africanus was a direct ancestor of Paranthropus and Homo (the two were sister taxa ), and that A. africanus evolved into H. habilis which evolved into H. erectus which evolved into ...
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However, it is also argued that Paranthropus is an invalid grouping and synonymous with Australopithecus, so the species is also often classified as Australopithecus boisei. Robust australopithecines are characterised by heavily built skulls capable of producing high stresses and bite forces , and some of the largest molars with the thickest ...