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, ...

A study published in the journal Communications Earth & Environment reveals the existence of a 60-million-year cycle combining tectonics, biogeochemistry, and marine biodiversity. By ...

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 ...

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.

“A myriad of geological signals reflect this fact.” The Anthropocene issue has polarized scientists in a way that few issues in the history of the geological time scale ever have.

The proposal to add an Anthropocene Epoch to the geological time scale was rejected for a variety of reasons, none of them related to the fact that human societies are changing this planet.

We found that our model reproduces the key elements of Earth’s sediment transport, from catchment dynamics depicting river networks over time to the slow changes of large-scale sedimentary basins.

The newly proposed lunar time scale scheme, consisting of three Eons and six Periods units, offers a systematic framework for describing the evolutionary history of the Moon. This scheme ...