At least three species within the genus Homo achieved a Paleolithic level of development. There is a great deal of evidence that the species H. erectus (which likely originated in Africa and lasted from 1.9 million to about 200,000 years ago), H. neanderthalensis (that is, the Neanderthals, who inhabited Eurasia from at least 200,000 years ago to as late as 24,000 years ago), and H. sapiens (the species that originated in Africa more than 315,000 years ago and includes all living people) created and used stone tools. In addition, if the dating of the earliest known hand tools is correct, one or more species of Australopithecus (living in Africa from 4.4 million to 1.4 million years ago) or possibly a more archaic member of Homo could have created them.
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