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Mizzou ANTHRO 2050 - Australopithecines

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Anthro2050 1st Edition Lecture 26Outline of Last Lecture I. The Human Fossil RecordII. Early HominidsOutline of Current Lecture I. Intro to AustralopithecinesII. Gracile AustralopithecinesCurrent LectureIntro to Australopithecines:-1 to 4 million years ago-most numerous genus-they can be divided into two branches; gracile australopithecines (our ancient ancestors) and robust australopithecines (a branch off, not related to modern humans, but still important to study)Gracile Australopithecines:- species' A. anamensis, A. africanus, A. afarensis, and A. garhi- the Australopithecus afarensis is the most well known, and it's features will be used to describe gracile australopithecines, but keep in mind that australopiths are diverse across species.-East African hominid (Tanzania and Ethiopia)-"Lucy", a famous A. afarensis, found in Hadar. 2.3 million years old. Female, 3 1/2 feet tall.-brain size 375-540cc-strong post orbital constriction-modest supraorbital torus (brow ridge)-no sagittal crest, but strong temporal linesThese 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.-large canines with a space in the jaw, like in apes, but the canines are small enough they do notneed that space, it is just a left over from ape ancestors.-anterior foramen magnum, suggesting


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Mizzou ANTHRO 2050 - Australopithecines

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