ANT100Y1 Chapter Notes - Chapter 5: Foramen Magnum, Frontal Bone, Dentition
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ANT100Y1 Full Course Notes
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Chapter 5 origins of primates and their evolution. Goals morphological features of primate fossils over time, how morphology determine primate diet and movement, general morphological patterns and phylogenetics over time. Keywords: inscisors, canines, molars, enamel, maxilla, mandible, cranial, post-cranial, foramen magnum (fm), arboreal theory, Term maxilla (upper jaw), mandible (lower jaw) Teeth are good representatives of primate diet as their hard structure results in long periods of fossil remains. Primates all have diphyodonty (two sets of teeth throughout primate development baby teeth and adult teeth ) Structure of human tooth (fig 5. 1) in three parts crown, neck, and root. Heterodonty provides a dental formula that determines the type of primate teeth (front to back) which are: incisors, canines, premolars, molars (fig 5. 2) Dental formula: 2. 1. 2. 3/2. 1. 2. 3 (left half or right half of maxilla and mandible) 4 incisors, 2 canines, 4 premolars, and 6 molars. Cranial (bones of the head), post cranial (bones below the head)
