(Updated by chance)
Thirty million years are enough to wash away everything. But no matter how precise the instrument is, there will be errors. The long years have left behind an old customer.
When the past spanning 30 million years intersects with reality, will you be stuck in the past, or will you choose the present?
(Plot line: Tiga (modern) Tiga (super ancient) (These two are the main ones. As for the other arcane systems, it's hard to say. I may or may not write them.))