Upper carboniferous period
volume
British pronunciation/ˌʌpə kˌɑːbənˈɪfəɹəs pˈiəɹɪəd/
American pronunciation/ˌʌpɚ kˌɑːɹbənˈɪfɚɹəs pˈiəɹɪəd/

"upper carboniferous period"的定义和意义

Upper carboniferous period
01

from 310 million to 280 million years ago; warm climate; swampy land

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