01:070:102 Final: Class Notes - Final.doc
30 Oct 2014
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Document Summary
Unguligrade walking on the tips of terminal phalanges (deer) Digitigrades walking on all phalanges (cat) Plantigrade walking on phalanges and metapodials, and carpals/tarsals (monkeys) Body fossils mineralized bones and teeth. Tooth structure cross section of human molar. Top two points cusps cusp pattern is very species specific. Upper part of the tooth above the gum crown. Neck between the crown and roots. Roots two roots holding tooth in gums. Dentine underlying the enamel softer than enamel similar density to bone. Pulp cavity underlying the dentine holding nerves. Herbivore complex infolding of enamel in dentine to form grating surface. Omnivore low, rounded cusps adequate to comminute many food textures. Homodonts all teeth in jaw have pretty much the same form and perform the same function fish, reptiles. Number of each type of tooth in one quadrant of the dentition. Human dental formula 2 incisors 1 canine 2 premolars 3/2 molars.
