The beginning and end of each chunk of time in the geologic time scale is determined by when some species appeared or disappeared from the fossil record. When many species went extinct around the same ...

Usually, geologic layers build on one another, with younger rocks piling on top of older ones. A new study, however, shows ...

- 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 Interactive Geology Project was formed in 2002 by Professor Paul Weimer and colleagues to animate Colorado’s geologic history and explore new ways of using 3D technology in earth science education ...

The Geologic Time Scale-- all 4.56 billion years of it -- is the way Earth scientists converse about time. It started off based on the relative occurrence of fossils and the periods were named after ...

Scientists have identified the geological site that they say best reflects a proposed new epoch called the Anthropocene — a major step toward changing the official timeline of Earth’s history.

These geological chapters are often named after the place where they were first studied. The Jurassic Period is named after fossil-rich rocks in France’s Jura Mountains, while the Cambrian ...

The ancient coelacanth, which has existed for some 419 million years, never stopped evolving despite its reputation as a "living fossil." A new discovery reveals that it evolved faster when plate ...

Animals Are Older Than We Thought. Season 6 Episode 13 | 11m 57s Video has Closed Captions | CC. What are animal-like fossils doing in rocks a billion years old? Aired 02/06/2024 | Rating NR ...

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, ...