silurian period (0 synonym found)

We don't have synonyms for silurian period yet — it may be a rare, specialized, newly coined, or misspelled word.

We don't have any synonyms for silurian period yet.

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Definition of silurian period:

(n) : from 425 million to 405 million years ago; first air-breathing animals
Definition of silurian period:

(n) : from 425 million to 405 million years ago; first air-breathing animals
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