Cambrian, Ordovician , Silurian, Devonian, Carboniferous and Permian are the six periods of the ___ era.

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Solution

The Palaeozoic era is divided into six periods - Cambrian (540 - 485 mya), Ordovician (485 - 440 mya), Silurian (440 - 415 mya), Devonian (415 - 355 mya), Carboniferous (355 - 300 mya) and Permian (300 - 253 mya).

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