Our Origins: Discovering Physical Anthropology (Fourth Edition)
4th Edition
ISBN: 9780393614008
Author: Clark Spencer Larsen
Publisher: W. W. Norton & Company
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Chapter 10, Problem 4ER
Summary Introduction
To explain: Major anatomical differences between earliest hominins and latest australopithecines and to contrast dental and cranial morphology of the gracile as well as robust australopithecines, to detect which group is a direct ancestor to the genus Homo’s first member.
Introduction: Hominin is a term used frequently to indicate the human lineage’s extinct members. The australopithecine differences are mainly in robusticity and size – ranging from gracile and small to that of robust and large.
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list TWO similarities between early members of the genus Homo (e.g. H. habilis) and Homo erectus/ergaster that earlier hominins (e.g. gracile Australopithecines) do not have?
Which statement is NOT true about the early hominins:
A) The angle of the foramen magnum on Sahelanthropus tchadensis ("Toumai") indicates a vertically oriented upper neck, a clear sign of bipedalism.
B) The reconstructed skeleton of Ardipithecus ramidus ("Ardi") suggests she was adapted for bipedal walking and climbing in trees.
C) Early hominins such as Sahelanthropus and Ardipithecus had small, chimp-sized brain.
D) All of the above are true.
There is a early part of the finds of the first bipedal hominid to the Ardispithecines and the Astralopithecines. From the Pre-Australopithecines like the earliest bi-pedal, the Sahelanthropus Tchadensis (7-6mya) to the Ardipithecus kadabba and Ardipithecus ramidus (5.8-4.4 mya). The ramidus was found by Tim White, UCB Professor and a big team he led. Where were these found, in Ethiopia. The later hominds, in the early period are the Australopithecines (4-1 mya) where they lost there honing, and became more committed to the ground. The Anamensis (4 mya), the Afarensis (3.6 - 3 mya) the famous one being Lucy. On average the Afrensis were aobut 5 ft tall. Lucy was 3 1/2. The Afrensis are a combination of arboreal, but much more bipedal. Kenyanthropus Platyops, and finally the Garhi. The question is which ones are in the human lineage.
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Our Origins: Discovering Physical Anthropology (Fourth Edition)
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