JAVIER TRUEBA / MSF / SCIENCE PHOTO LIBRARY JAVIER TRUEBA / MSF / SCIENCE PHOTO LIBRARY
Australopithecus boisei discovery site, Olduvai Gorge, Tanzania. This plaque refers to the original genus name of Zinjanthropus. This species has since been reclassified again and is now known as Paranthropus boisei. The original discovery, skull OH5 (1.75 million years old), was found here on 17 July 1959 by British paleoanthropologist Mary Douglas Leakey (1913-1996). It is one of numerous major discoveries made in Olduvai Gorge by several members of the Leakey family. P. boisei, forming part of the human evolutionary tree, is an extinct hominin species that lived during the Pliocene epoch (around 5.3 to 1.8 million years ago).
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