Ardipithecus Paleoart

Scientific name: Ardipithecus ramidus
Family: Hominidae
Epoch: Pliocene
Size: 1.2 m tall
Location: East Africa

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Description

Reconstruction of Ardipithecus ramidus, specifically of the specimen known as “Ardi” ARA-VP-6/500.

Ardi is less than a million years old than Lucy, (model of a hominid belonging to the Australopithecus afarensis species, 3.3 million years old. Ardi was a female A. ramidus weighing 53 kg and approximately 120 cm tall. Its remains found in the bears of hands, feet, legs, ankles, pelvis and the maxilla of the skull.
Small, shiny foods, both trees and the ground. It probably had a more omnivorous diet than current chimpanzees, mainly frugivorous, as deduced from isotopic analysis of soil, teeth and other samples. Researchers argue that the shape of the pelvis, the limbs suggest that it will be bipedal when moving on foot, but will be quadrupled when moving between groups of trees. It is specialized in a erect posture. A.ramidus , with a very “bowed” waist to support the intestines in a vertical posture and with the bones of the feet slightly rigid to facilitate bipedal deportation.
While the arm bones are long and curved to hold on to the bunches of trees, it also had on the lower part of the upper arms, or hallux, divergent from the other hands, as in large specimens, where it is possible to hold on with the paw, even to trees.
Scientists Brian Switex and Carl Zimmer indicate that A. ramidus seems to be a basal hominid and that chimpanzees seem to be specialized in braking at this point.

Being a basal hominid implies that A. ramidus is similar in many anatomical features to the ancestry of both humans and chimpanzees, but not necessarily of direct ancestry. From now on, according to molecular calculations, the last common ancestor between the chimpanzee and human life lived between 7 and 5 million years ago.

Bibliography:

https://www.nature.com/news/2009/091001/full/news.2009.966.html Tim D. White, Gen Suwa et Berhane Asfaw, « Australopithecus ramidus, a new species of early hominid from Aramis, Ethiopia », Nature (1994) 371: 306-312 Tim D. White, Gen Suwa et Berhane Asfaw, « Ardipithecus ramidus, a new species of early hominid from Aramis, Ethiopia », Nature (1995) 375: 88 Ardithecus and early evolution in light of twenty-first-century developement biology. Owen Lovejoy

White, T. D.; Lovejoy, C. O.; Asfaw, B.; Carlson, J. P.; Suwa, G. (2015). «Neither chimpanzee nor human, Ardipithecus reveals the surprising ancestry of both». Proceedings of the National Academy of Sciences 112 (16): 4877-4884.

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