Individual #Triassic_period__Triassic  from 190 million to 230 million years ago; dinosaurs, marine reptiles; volcanic activity
  instance of:  #geological_period
  part of:  #Mesozoic_era__Mesozoic__Age_of_Reptiles  from 63 million to 230 million years ago

No statement uses or specializes #Triassic_period; click here to add one.