devonian : Idioms & Phrases
Index
Devonian age
(Geol.) , the age next older than the Carboniferous and later than the Silurian; called also theAge of fishes . The various strata of this age compose the Devonian formation or system, and include the old red sandstone of Great Britain. They contain, besides plants and numerous invertebrates, the bony portions of many large and remarkable fishes of extinct groups. See the Diagram underGeology .
Webster 1913
devonian period
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noun from 405 million to 345 million years ago; preponderance of fishes and appearance of amphibians and ammonites
Age of Fishes; Devonian.
