devonian period

Noun
  1. From 405 million to 345 million years ago;
    Preponderance of fishes and appearance of amphibians and ammonites (synset 115152934)
    is an instance of: geological period, period - a unit of geological time during which a system of rocks formed
    is a part of: paleozoic, paleozoic era - from 544 million to about 230 million years ago
    same as: age of fishes, devonian

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