Silurian (n)
Silurian period (n)

n15128200

type n
lex_filenum 28
def from 425 million to 405 million years ago
def first air-breathing animals
Outgoing links
Instance Hypernym period, geological period
Part holonym Paleozoic, Paleozoic era
Incoming links
Part meronym Paleozoic, Paleozoic era
Instance Hyponym period, geological period

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