Anthro2050 1st Edition Lecture 26 Outline of Last Lecture I The Human Fossil Record II Early Hominids Outline of Current Lecture I Intro to Australopithecines II Gracile Australopithecines Current Lecture Intro 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 lines 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 large canines with a space in the jaw like in apes but the canines are small enough they do not need that space it is just a left over from ape ancestors anterior foramen magnum suggesting bipedalism
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