DEVONIAN

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

From 405 million to 345 million years ago; preponderance of fishes and appearance of amphibians and ammonites

Synonyms:

Age of Fishes; Devonian; Devonian period

Classified under:

Nouns denoting time and temporal relations

Instance hypernyms:

geological period; period (a unit of geological time during which a system of rocks formed)

Holonyms ("Devonian" is a part of...):

Paleozoic; Paleozoic era (from 544 million to about 230 million years ago)

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