Search results
Results from the WOW.Com Content Network
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 ...
For example, the average cranial capacity for Australopithecines is 440 cc, and the post-orbital constriction index is 0.66. [ 1 ] [ 5 ] However, with the evolutionary change in brain size in Australopithecines to the Homo genus, the average cranial capacity for Homo Habilis is 640 cc, and the post-orbital constriction index is 0.72.
Australopithecus garhi is a species of australopithecine from the Bouri Formation in the Afar Region of Ethiopia 2.6–2.5 million years ago (mya) during the Early Pleistocene. The first remains were described in 1999 based on several skeletal elements uncovered in the three years preceding.
Debate exists as to whether some Australopithecus species should be reclassified into new genera, or if Paranthropus and Kenyanthropus are synonymous with Australopithecus, in part because of the taxonomic inconsistency. [7] [8] Furthermore, because e.g. A. africanus is more closely related to humans, or their ancestors at the time, than e.g.
Paranthropus is a genus of extinct hominin which contains two widely accepted species: P. robustus and P. boisei.However, the validity of Paranthropus is contested, and it is sometimes considered to be synonymous with Australopithecus.
Several species, including Australopithecus garhi, Australopithecus sediba, Australopithecus africanus, and Australopithecus afarensis, have been proposed as the ancestor or sister of the Homo lineage. [36] [37] These species have morphological features that align them with Homo, but there is no consensus as to which gave rise to Homo.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
These were unearthed in the 4.4-million-year-old (Ma) deposits of the Afar region in Aramis, Ethiopia from 1992 to 1993, making them the oldest hominin remains at the time, surpassing Australopithecus afarensis. They initially classified it as Australopithecus ramidus, the species name deriving from the Afar language ramid "root". [1]