In the early 19th century, scientists started using rock strata to divide the Earth’s 4.6-billion-year history into distinct periods. By that point, they were beginning to realise that Earth was far, ...

Geological time, generally considered as a system of eras, periods and epochs materialized in rock strata, might actually follow a simple and unifying model. Indeed, a new study led by physicist Shaun ...

A new international study published in Earth and Planetary Science Letters reveals that the boundaries between geological epochs and periods, even though randomly distributed, follow a hidden, ...