Definition that contains reponder
- devonian from 405 million to 345 million years ago; preponderance of fishes and appearance of amphibians and ammonites
- age of fishes from 405 million to 345 million years ago; preponderance of fishes and appearance of amphibians and ammonites
- devonian period from 405 million to 345 million years ago; preponderance of fishes and appearance of amphibians and ammonites