rus: Геологические периоды

Information
has URI	http://lexvo.org/id/term/rus/%D0%93%D0%B5%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D0%B5%20%D0%BF%D0%B5%D1%80%D0%B8%D0%BE%D0%B4%D1%8B

Meaning
means	(noun) a period marked by distinctive character or reckoned from a fixed point or event era, epoch