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 ...

As a period of geologic time, the boundaries of the Triassic are defined on the basis of rocks and the fossil record. It was the German geologist Friedrich August von Alberti who first marked the ...

Late Ordovician Period - The Ordovician Period refers to the interval of geologic time from approximately 505 to 438 million years ago and is sometimes called the "age of marine invertebrates". Late ...

The Cretaceous is a geological period that began 145 million years ago and ended 66 million years ago. It is the last period in the Mesozoic Era. It comes after the Jurassic Period and before the ...

Scientists use the evidence recorded within rocks throughout geologic time to reconstruct a picture of earth's history. Amateurs, too, can look at local rocks to learn about what life was like in the ...

According to this view, a once-tumultuous period of change had slowed to ... aspects of the forces Lyell believed had operated over geological time to produce the world we see now.

And this might have changed Earth’s climate and geological history forever. Around 466 million years ago, during a period ...

Siluria has fungal hyphae like antlers because Silurian period has fungi emergence ... Besides Berserk, it seems Miyazaki is also a fan of geology. There are other instances linked to the ...

For years, scientists had thought that this dry period ended gradually ... Earth & Environment combines newly discovered geological features with geophysical data and numerical modelling to ...