3 min read During the Ordovician period, part of the Paleozoic era, a rich variety of marine life flourished in the vast seas and the first primitive plants began to appear on land—before the ...

Late Ordovician Period - The Ordovician Period refers to the interval of ... Terrigenous - Derived from the land. Terrigenous sediments are typically clastic sediments eroded from a nearby landmass.

A creature that scuttled along the seafloor 450 million years ago has been preserved in a rare and striking fossil that ...

The Paleozoic era's Silurian period saw animals and plants finally emerge on land. But first there was a period of biological regrouping following the disastrous climax to the Ordovician.

Given that most (by a significant margin) of Earth’s land falls outside that 30 degree ... implications of such a ring system.” The Ordovician period and its impact spike correspond closely ...

Scientists assessed 21 asteroid craters from the “Ordovician impact spike” period 466 million years ago and noticed that ...

Amateurs, too, can look at local rocks to learn about what life was like in the Ordovician Period, 505 to 438 million years ago. Some of our area's unique geological features and the processes that ...

A new study suggests that extreme temperatures could lead to a mass extinction event, ending the reign of humans and mammals ...

Researchers have proposed that Earth may have had a ring system 466 million years ago, during a period of intense meteorite bombardment known as the Ordovician impact spike. This finding ...

The earliest fossil evidence for sharks or their ancestors are a few scales dating to 450 million years ago, during the Late Ordovician Period. Emma Bernard ... this time that the first plants invaded ...

The creature lived on the ocean floor during the Ordovician Period (485 million to 444 million years ago) at a time when life had only a tentative foothold on land. Named Lomankus edgecombei ...