Reston, VA – The U.S. Geological Survey (USGS) and the Association of American State Geologists (AASG) announced that they have developed an updated geologic time scale and color scheme for use in ...

MILLIONS of people can name a single geologic period, the Jurassic. Nit-pickers did argue that the famous film should have been called Cretaceous Park, resting their case on the identification of the ...

Jurassic, Pleistocene, Precambrian. The named times in Earth’s history might inspire mental images of dinosaurs, trilobites, or other enigmatic animals unlike anything in our modern world. Labels like ...

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 critical ...

It's official. More than 8,000 years ago, a vast amount of water from melting glaciers flooded North America and caused havoc with the currents and atmosphere of the North Atlantic. That significant ...

Introduction / F.M. Gradstein -- Chronostratigraphy : linking time and rock / F.M. Gradstein, J.G. Ogg and A.G. Smith -- Biostratigraphy : time scales from graphic and quantitative methods / F.M.

NH copy Purchased from the Cullman Endowment. V. 1. The chronostratigraphic scale / F.M. Gradstein and J.G. Ogg -- Biochronology / F.M. Gradstein -- Cyclostratigraphy and astrochronology / L.A. Hinnov ...

The asteroid that struck the Earth 66 million years ago devastated life across the planet, wiping out the dinosaurs and other organisms in a hail of fire and catastrophic climate change. But new ...

mehg-a-LAY-an n. The newly named current geologic age that started 4,200 years ago. Welcome to the Meghalayan, our geologic here and now. It’s one of three newly designated ages divvying up the ...