Lineage of Prajapati - Verse 155

Just as the continuity of Krta Yuga is remembered as preceded by Kali Yuga by learned men, so also the beginning of Manvantaras is preceded by the end of (the previous) Manvantara. 156*157. When the earlier Manvantara declines and the later one begins to function, those who survive in the beginning of the Kyta Yuga, viz. the Seven Sages and Manu, remain biding their time (performing penance ) .