Anthro2050 1st Edition Lecture 25 Outline of Last Lecture I Humans and Apes Cont Outline of Current Lecture I The Human Fossil Record II Early Hominids Current Lecture The Human Fossil Record Timeline of humans and human ancestors Early Hominids Australopithecines Early Homo Homo erectus and Neanderthals and Modern Humans Last common ancestor with humans and chimpanzees estimated around 7 million years ago In that time for both species a lot of change occurred The rest of the semester s lectures will focus on each category separately Early Hominids Difficult group to study as there are few fossils and a lot of them are privately owned New information is hard to get yet comes up often enough This information is just what anthropologists have found so far Earliest species Sahelanthropus tchadensis Specimen remains found estimated 6 7 million years ago Found in Chad in Central Africa tiny brain 320 380cc severe postorbital constriction smaller canines framen magnum pointing down like in humans other estimated species found Orrorin tugenesis and Ardipithecus ramidus due to the age fragmentation of bones and distorted samples these earliest species are the These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute most difficult to study but are necessary to understand the divergence of humans from other apes
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