Which animal has the lengthiest hibernation pderiod?

Which animal has the lengthiest hibernation pderiod?

A kind of frog, I have seen a frog jump out of a big rock when a builder smashed it. Natives Sri Lanka people break big rock into small to mix with cement to build houses. I think that the frog was in the rock for many million of years when lava follows form the island of Sri Lanka. I have already informed NASA that life forms like the frog can survive in any environment.