In turn, the extinction of the dinosaurs and several other animal groups 65.5 million years ago defines the beginning of the Cenozoic era. We are including several pages with geologic time scale data ...

The geologic time scale provides the official framework for ... the most recent division of the Cenozoic Era, which in turn is part of Phanerozoic Eon — which spans from 539 million years ...

their ceaseless evolution making a mark in some way on their time. Broadly, there are four geological eras. The Precambrian Era began 4.6 billion years ago, with the formation of our planet and ...

According to the International Union of Geological Sciences (IUGS), the professional organization in charge of defining Earth’s time scale ... The atomic era, for instance, has left traces ...

The lines on the geologic time scale are there to illustrate when massive ... It deserves a really big line on the timescale, and that includes an era as well as the epoch and period and so ...

Paris (AFP) – A top panel of geologists has decided not to grant the 'human age' its own distinct place in Earth's geological timeline after disagreeing over when exactly our era might have begun.

I like to use a meter stick and be very intentional with my spacing to model time as a scale. I also avoid using the far right ... to sort events in the order they have happened. Show the geologic ...