IB 173/173L 
Mammalogy 
THE MAMMALIAN MASTICATORY APPARATUS

Origin: 

  • Rowe, T. 1996. Coevolution of the mammalian middle ear and neocortex. Science 273:651-654.
  • Crompton, A.W., and P. Parker. 1978. Evolution of the mammalian masticatory apparatus. American Scientist 66:192-201.
  • Bramble, D.M. 1978. Origin of the mammalian feeding complex: models and mechanisms. Paleobiology 4:271-301.
 Function:
  • Turnbull, W.D. 1970. Mammalian masticatory apparatus. Fieldiana: Geology, vol. 18, no. 2:149-356.
  • Hiiemae, K.M. 1978. Mammalian mastication: a review of the activity of the jaw muscles and the movements they produce in chewing. Pp. 359-398 in P.M. Butler and K.A. Joysey (eds.) Development, Function, and Evolution of Teeth. Academic Press, New York.
  • Freeman, P.W. 1979. Specialized insectivory: beetle-eating and moth-eating molossid bats. J. Mammalogy 60:467-479.
  • Greaves, W.S. 1980. The mammalian jaw mechanism - the high glenoid cavity. Amer. Naturalist 116:432-440.
  • Herring, S.W. 1993. Functional morphology of mammalian mastication. Amer. Zoologist 33:289-299. 
Figure 1:  coevolution of the mammalian mandible and middle ear.
Figure 2:  lower jaw and jaw articulations in a reptile (above) and mammal (below).
Figure 3:  relationship of the jaw-joint bones in Thrinaxodon, a Triassic mammal-like reptile, and Didelphis, a marsupial.
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