Chapter 5 Anthro notes
Chapter 5 Anthro notes 201g
Popular in Introduction to Anthropology
Popular in Cultural Anthropology
This 2 page Class Notes was uploaded by Brenna Graham on Saturday September 17, 2016. The Class Notes belongs to 201g at New Mexico State University taught by Dr. Kelly jenks in Fall 2016. Since its upload, it has received 23 views. For similar materials see Introduction to Anthropology in Cultural Anthropology at New Mexico State University.
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Date Created: 09/17/16
Chapter 5 Notes Apes appeared and developed between 235 mya Homnin appear 5 mya Climate change may have added pressure for Habitual bipedalism where bipedalism is more common than not Most ancestors found in South Africa and eastern Africa along the great rift valley and Chad Dating methods Stratigraphy dating when a fossil lived relative to the layers of dirt around them. Potassiumargon dating using volcanic ash to specifically date when the ash on the fossils were deposited by how much an isotope has degraded Primary DepositsWhere a fossil was originally and where they lived and died\ Secondary Depositswhere the fossils are moved by natural /cultural processes and are very unreliable for dating methods. Caves in south America is a great source of fossils but is hard to date fossils Bipedalism earliest derived trait for hominins is walking on two legs Mosaic Evolution the evolution of different body parts at different speeds. Bipedalism needs short bowl shaped pelvis, big toe doesn’t diverge, s shaped spine, angled in femur, arched feet Savvannah theory bipedalism evolved to allow carrying stuff, easier to see food and danger, cool body, energy efficient BUT bonobos are bipedal but live in forests Hominins lived in forests No abrupt climate change occurred Long annoying list of early hominins here.
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