Upper Carboniferous
English Dictionary
->
Letter U
-> Upper Carboniferous
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Upper Carboniferous Definition
(n)
from
310
million
to
280
million
years
ago
;
warm
climate
;
swampy
land
Upper Carboniferous Synonyms
Pennsylvanian
Pennsylvanian period
Upper Carboniferous
Upper Carboniferous period
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