DEVONIAN

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 Dictionary entry overview: What does Devonian mean? 

• DEVONIAN (noun)
  The noun DEVONIAN has 1 sense:

1. from 405 million to 345 million years ago; preponderance of fishes and appearance of amphibians and ammonites

  Familiarity information: DEVONIAN used as a noun is very rare.

 Dictionary entry details 

• DEVONIAN (noun)

Sense 1

Meaning:

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

Classified under:

Nouns denoting time and temporal relations

Synonyms:

Age of Fishes; Devonian; Devonian period

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)