Individual #Pleistocene_epoch__Pleistocene__Glacial_epoch  from 11 thousand to 2 millions years ago; extensive glaciation of N hemisphere; time of human evolution
  instance of:  #epoch
  part of:  #Quaternary_period__Quaternary__Age_of_Man  last 2 million years
     part of:  #Cenozoic_era__Cenozoic__Age_of_Mammals  approximately the last 63 million years

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