Paranthropus boisei

…lineage) that her husband named Zinjanthropus, or “eastern man,” though it is now regarded as Paranthropus, a type of australopith, or “southern ape.”

habilis and P. boisei at Olduvai Gorge, northern Tanzania, the climate changed from moist to dry and again to moist before a long dry span that began two million years ago. Specimens of both of these Olduvai hominins are mostly from the shore of an ancient saline,…

robustus, and P. boisei). The species are often referred to as “robust australopiths” because of their relatively large facial features, jaws, and molars. Although many paleontologists consider these physical characteristics sufficiently distinct to warrant their divergence from Australopithecus, others claim that they are too similar to those…

…hominin (of human lineage) species Paranthropus boisei containing a complete set of adult teeth. It was found in 1964 at Peninj, a locale in Tanzania to the west of Lake Natron and about 80 km (50 miles) from Olduvai Gorge, a major paleoanthropological site.

Australopithecus robustus and A. boisei are also referred to as “robust” australopiths. In addition to a well-developed skull crest for the attachment of the temporalis (or temporal muscle, which is used in chewing), other specializations for strong chewing include huge cheek teeth, massive…