Individual #Mesozoic_era__Mesozoic__Age_of_Reptiles  from 63 million to 230 million years ago
  instance of:  #geological_era
  part:  #Cretaceous_period__Cretaceous  from 63 million to 135 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants
  part:  #Jurassic_period__Jurassic  from 135 million to 190 million years ago; dinosaurs; conifers
  part:  #Triassic_period__Triassic  from 190 million to 230 million years ago; dinosaurs, marine reptiles; volcanic activity

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