Missippian period
volume
British pronunciation/mɪsˈɪpiən pˈiəɹɪəd/
American pronunciation/mɪsˈɪpiən pˈiəɹɪəd/

"missippian period"的定义和意义

Missippian period
01

from 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects

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