Permian period

ریشه

From Latin 'Permianus', from 'Permia', a region in Russia where rocks from this period were first studied.

مثال

• The Permian period saw the emergence of the first true mammals.
• The Permian period is known for its extensive coal deposits.
• The Permian period ended with a mass extinction event.

ترکیب‌های رایج

Permian period Permian fossils Permian rocks Permian extinction event