Geologic Time is a crucial concept to understanding the history of the earth—including the evolution of life. Many different representations of the timeline have been created, and many approaches ...

One important moment in geologic time was the transition from the Mesozoic era to the Cenozoic era about 65 million years ago. The change was spurred by the asteroid impact that eventually killed ...

A matter of time The Jurassic Period came during the Mesozoic Era, from 250 million years ago to 66 million years ago. The Mesozoic also includes the Cretaceous and Triassic periods.

A Brief History of Geologic Time. Season 1 Episode 19 | 12m 8s Video has Closed Captions | CC. Geologists have been able to identify crucial episodes in life’s history. By looking at the layers ...

about geologic time periods, evolution, Pleistocene gigantism and the. possible causes of extinction of those marvelous beasts. OK, ...

POCATELLO, Idaho (KIFI) – An Idaho State University professor’s research is tackling one of the hottest debates in geology: Has human activity changed the planet enough to mark a new geologic ...

When the geologic time periods were being named, mainly in Great Britain, the time during which coal was being deposited was christened the Carboniferous Period.

Earth's geologic epochs—time periods defined by evidence in rock layers—typically last more than three million years. We're barely 11,500 years into the current epoch, the Holocene.

All of these approaches face a challenge, however: combining human-caused changes with natural, global variations that normally demarcate different geologic time periods. For instance, our current ...

The Verge interviews Marcia Bjornerud, a geologist at Lawrence University in Wisconsin and the author of Timefulness: How Thinking Like a Geologist Can Help Save the World.

Geologists measure time in eons, eras, periods, epochs and ages. They propose we have moved from the Holocene Epoch, which started about 11,700 years ago at the end of an ice age to the ...