Phys A L11

Phys A L11 - thick enamel on cheek teeth 5. Gum/exudates:...

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11/2/2007 Physical Anthropology: Lecture 11 (Chapter 6) I. Abrasive Surfaces A. Hypsodont: high crowned extend beyond gum line (horses) B. Brachydont: low crowned C. Lophodont: addition of enamel ridges (herbivores and rodents) D. Bilophodont: 2 main transverse lophs/ridges (baboon) E. Selenodont: stretch/elongated primary cusps (gazelle) F. Bunodont: quadrate, low rounded cusps (chimp) G. Carnassials: modified upper premolar and lower molar (dogs) II. Dentition A. Tooth cusp pattern primates: 1. Insectivores: high, pointed, shearing crest 2. Herbivores: spatulate incisors, bunodont (low cusped) premolars/molars 3. Folivores: reduced incisors, shearing crest, more cusps, not high and pointy 4. Seed eaters: procumbent incisors, lusks like canines (pithecines), low cusps,
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Unformatted text preview: thick enamel on cheek teeth 5. Gum/exudates: Procumbent lower anteriors, sometimes large/stout incisors, less lingual (tongue) enamel (sharpening) III. Dental Formula A. Primitive Mammalian: 3:1:4:3 all quads (=44) B. Prosimians: 2:1:2:3 all quads (=36) maxilla C. Indriis: 1:1:2:3 mandiable (=34) D. Daubentonia: 1:0:1:3 maxilla, 1:0:3:3 mandible E. Tarsius: 2;1:3:3 maxilla, 1:1:3:3 mandible (=34) F. Anthropoids 1. NWM: 2:1:3:3 (cebids, 36) and 2:1:3:2 (callitrich, 32) 2. OWM: 2:1:2:3 all quads (=32) G. Cecopiths have bilophodont molars, YS in hominoids, all catarrhines have sectorial P3 (honing with canine) and more molariform P4...
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This note was uploaded on 04/08/2008 for the course ANTH 5 taught by Professor Gaulin during the Fall '07 term at UCSB.

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