Anthropology 2226A/B Lecture Notes - Lecture 9: Paranthropus Robustus, Paranthropus Boisei, Hadar, Ethiopia
26 Nov 2016
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On making sense of the early diversification of the human lineage. Marks sees the family hominidae as being composed of just three genera: australopithecus, paranthropus and homo. He considered that evidence to link the late miocene genera sahelanthropus, orrorin, and ardipithecus to the lineage leading to homo is insufficient at present: they are possible early hominids. Cranial and dental morphologies became more gracile over time which means they were more lightly-built and less robust. Brain size began to increase in hominins about 3 million years ago and began to accelerate about 1. 8 million years ago beginning with homo erectus. Although it is certain that hominins eventually occupy other regions of the world, hominins can be regarded as a primate lineage that originally evolved in africa. In africa, hominid fossils have been found in two major regions: the first hominid fossils to be found in.
