noun: from 345 million to 280 million years ago
adj: of or relating to the Carboniferous geologic era; "carboniferous rock system"
adj: relating to or consisting of or yielding carbon
Length: 13 letters
Scrabble value: 20
Words with Friends value: 24
Literati value: 16
TWL (USA): Found
SOWPODS (UK): Found
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