Among them, the Late Ordovician Mass Extinction (LOME) is the earliest of the Phanerozoic, ... The average species extinction rate during this phase was 8.4% per 100 kyr.

The Ordovician period, from 485 to 444 million years ago, was a time of dramatic changes for life on Earth. Over a 30-million-year stretch, species diversity blossomed, but as the period ended ...

However, sometime around 445 million years ago, 85 percent of species went extinct over the relatively short interval of 1.4 million years. This unprecedented die-off is now known as the earth’s first ...

At least five times, a biological catastrophe has engulfed Earth killing off the vast majority of species. As scientists say we’re in a sixth mass extinction, what can we learn from the past?

A cataclysmic shift at the end of the Ordovician led to the disappearance of about 85% of species at a time when life was mostly limited to the seas. Sue the T. rex strikes a pose in its old ...

All the latest science news on ordovician period from Phys.org. Find the latest news, advancements, and breakthroughs.

Depending on species and diet, over its entire lifetime a shark can produce between 20,000 and 40,000 teeth. This means that there is a much greater chance that a shark tooth will be preserved and ...

Ring Species: Salamanders: Some critics of the theory of evolution argue that it doesn't convincingly explain the origin of new species. They say that members of one species couldn't become so ...

A new study projects biodiversity threats if global warming speeds up. Under the most extreme scenarios, about one in three species could be facing extinction by the end of the century.

Among them, the Late Ordovician Mass Extinction (LOME) is the earliest of the Phanerozoic, ... The average species extinction rate during this phase was 8.4% per 100 kyr.