ANT100Y1 Lecture 5: ANT100Y – Primate and human evolution
49
ANT100Y1 Full Course Notes
Verified Note
49 documents
Document Summary
Ant100y lecture #5 - primate and human evolution. Time frame and climate: geological timing system - epochs, the climate of the world was very different from what it is now. Claws instead of nails (claws are attached to bone) Enlarged incisors (space between large front teeth and chewing teeth) *phonetics (use of expert opinion and not a scientific hypothesis) Most recent: plesiadapids & others are primates: using cladistics analysis. Adapidae: body size: 100g to 6900g, diurnal and nocturnal forms, mainly arboreal quadrupeds, some were specialized leapers, smaller adapids ate mostly fruit and insects, larger forms ate more fruit and. Oligocene: 33. 9 - 23: parts of central america is coming above the ocean, ice caps form ocean levels are dropping, temperate forests are showing up. Primates: haplorhine features, fused frontal bone, full postorbital closure, fused mandibular symphasis, taxonomic groups, parapithecidae, proplilopithecudae, platyrrhini (south america)
