methods used included sem of methacrylate casts of marsupial enamel tubules , worn and cut surfaces of whole marsupial teeth , developing and erupted platypus teeth , and a well-developed molar of the newly discovered miocene ornithorhynchid obdurodon sp. , and tandem scanning reflected light microscopy of intact marsupial teeth .
C0011350
enamel
C0040426
teeth