The Geologic Time Scale tracks the history of our planet as a series of subdivided units of time. These are observed as stark changes in the geologic record, ... As specific examples, ...

Understanding the geologic time scale and how to organize Earth’s history into a coherent timeline. MS-LS4-1: Analyze and interpret data for patterns in the fossil record that document the existence, ...

The geologic time scale was not entirely intentional, at least at its start. In the early 1800s, ... The history of Earth’s atmosphere is one example.

Dividing up deep time The geologic time scale provides the official framework for our understanding of Earth’s 4.5 billion-year history. ... For example, we currently live in the Meghalayan Age.

Geologic time scales are long – too long for the human mind to really comprehend. Over millions, and tens of millions, and hundreds of millions of years, the Earth has changed from something ...

Geologists categorize time by looking at changes they see in the earth’s rock or sediment layers. Take the very dramatic example of the end of the Mesozoic era, when dinosaurs went extinct.

The geological time scale helps us grapple with the vast swaths of time that life has existed on Earth, dividing it into eras, periods, and epochs. With our illustrated version ...

The Late Holocene Meghalayan Age, newly-ratified as the most recent unit of the Geologic Time Scale, began at the time when agricultural societies around the world experienced an abrupt and ...

Geological time is divided into a hierarchical series of ever-finer units ().The present, according to The Geologic Time Scale 2012 10, is in the Holocene Epoch (Greek for ‘entirely recent ...

The Working Group on the 'Anthropocene' (AWG) will provide its summary of evidence and its provisional recommendations on a potential new geological time interval.