English
wikipedia
Adjective
en-adj
#geology Of a geologic period within the Paleozoic era; comprises the Llandovery, Wenlock, Ludlow and Pridoli epochs from about 439 to 409 million years ago.
Proper noun
en-proper noun
#geology The Silurian period.
See also
Wiktionary appendix:Geologic timescale
io:Silurian
zh:Silurian
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