Individual #Devonian_period__Devonian__Age_of_Fishes  from 345 million to 405 million years ago; dominance of fishes and appearance of amphibians and ammonites
  instance of:  geological_period
  part of:  Paleozoic_era__Paleozoic  from 230 million to about 544 million years ago

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


Another search (with same display options)?