ANT100Y1 Lecture : ANT 100 October 11th 2012.docx
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ANT100Y1 Full Course Notes
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Document Summary
General patterns of morphology and phylogenetics for fossil primates. What a hominin is in terms of taxonomy. Time frame and climate: on a continuous decrease in temperature from the paleocene period . Body size: tiny, shrew sized to size of small dog. Niche: likely solitary, nocturnal quadrupeds; well-developed sense of smell. Used to be classified as primates because of primate-like teeth and limbs that are adapted for arboreal lifestyle. Recent: plesiadapids not primates: no postorbital bar, 2) claws instead of nails, eyes placed on side of head, , enlarged incisors. Mainly arboreal quadrupeds, some may have been specialized leapers. Smaller adapids ate mostly fruit and insects, larger forms ate more fruit and leaves. Body size of 45 g to 2500 g. Teeth: adapted for eating insects and soft fruits, only few species were leaf-eaters. Omomyid (shoshonius) and what we think they looked like. Warning: similarity in form does not always equate with close phylogenetic relationships.
