Silurian period
volume
British pronunciation/sɪlˈʊəɹiən pˈiəɹɪəd/
American pronunciation/sɪlˈʊɹiən pˈiəɹɪəd/

"silurian period"की परिभाषा और अर्थ

Silurian period
01

from 425 million to 405 million years ago; first air-breathing animals

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