intrB05 - early hominids

intrB05 - early hominids - here. )- Paranthropus or...

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Anthropology 100 Lecture Outline Early Hominids  1. Early Ancestors - Reconstructing the human lineage requires difficult and disputable analysis of fragmentary fossil finds; the picture is constantly evolving as new evidence is discovered - The first known pre-human find was the " Taung child ," studied by Raymond Dart and named australopithecus africanus . (To see photos of this fossil, click here. ) 2. Early Hominids - while there are disagreements among paleoanthropologists in their interpretation of the fossil record, most would agree on the following species as parts of the human lineage - Australopithecus amanensis - Australopithecus afarensis (to see fossils of this species, click here. ) - Australopithecus africanus (to see fossils of this species, click
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Unformatted text preview: here. )- Paranthropus or Australopithecus robustus (to see fossils of this species, click here. )- Paranthropus or Australopithecus boisei (to see fossils of this species, click here. ) 3. Origins of Bipedalism- Humans have a number of adaptations for bipedalism, including our long leg bones, the lumbar curve in the back, and the positioning of the foramen magnum- Since bipedalism is slower and less stable than four-legged locomotion , it must have provided some benefit to early hominids that outweighed the disadvantages.- Theories about what that might have been have suggested roles for bipedalism in tool use, distance vision, heat protection, food sharing, seed eating, and efficiency of long range walking. Anthropology 100 Lecture Outline...
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intrB05 - early hominids - here. )- Paranthropus or...

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