Lesson6HumanEvolution - 10/12/09! Review: Human Taxonomy!...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
10/12/09 1 • Animalia • Chordata • Mammalia • Primata • Hominidae • Homo • Sapiens Kingdom Phylum Class Order Family Genus Species Acherontia atropos Great white shark ( Carcharodon carcharias ) Guinea pig Cavia porcellus Review: Human Taxonomy Sumatran orangutan Pongo abelii • Brain? • Vision? • Face? • Limbs? • Reproduction? • Sociality? REVIEW: What do we know about the Primate… Sumatran orangutan anubis baboon Papio anubis western tarsier Tarsius bancanus western gorilla Gorilla gorilla The Family: Hominids ht p:/ scienceblogs.com/tetrapodzoology/2007/07/tet_zoo_picture_of_the_day_22.php Bipedalism • Evolved looong before our big brains and ±at faces • 6-7 mya • Adapted to arboreal and terrestrial settings (±exible) 1. Freed up arms for carrying 2. elevated head (better sighting) 3. helped cool the body 4. ef²cient energy use for long periods of walking Adaptive how? Geologic/ Environmental Changes 55 mya oldest primate ²nds 4o mya monkeys in Old world 23 mya apes in Old world Continental drift Hominid Time Line Hominids?
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
10/12/09 2 Sahelanthropus tchadensis (“ Toumai”) • 6-7mya, South Africa • brain 320-380cc • foramen magnum positioned towards the back of the skull • no lower bones found • not genus homo, but may be precursor (“missing link”) Orrorin tugenensis (“millennium man”) • 6myo, Kenya • possible “missing link” • possible hominid • maybe bipedal (femur) • one of the oldest proposed human ancestors to date • Approx. 1.2 metres tall • lived in well-forested habitat • smaller molars, thicker enamel than australopiths Ardipithecus ramidus (“ground-man, root”) • 4.4-4.5mya • Ethiopia • Dentition is ape-like • Arms both ape-like and human-like • Size of modern chimpanzees • Some consider it the oldest known hominid • Not enough bones to determine bipedalism (partial child’s lower jaw, teeth, adult jawbone, skull, arms bones) Ardipithecus ramidus (“ground-man, root”)
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/28/2011 for the course ANTH 150 taught by Professor Pietrusewsky during the Fall '10 term at University of Hawaii, Manoa.

Page1 / 7

Lesson6HumanEvolution - 10/12/09! Review: Human Taxonomy!...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online