Noun: Devonian di'vow-nee-un
- The period from 405 million to 345 million years ago; characterized by preponderance of fishes and appearance of amphibians and ammonites
- Devonian period, Age of Fishes
Derived forms: Devonians
Type of: geological period, period
Part of: Palaeozoic [Brit, Cdn], Paleozoic, Paleozoic era
Encyclopedia: Devonian