Tomkins and his team reconstructed an unusual rise in the number of meteorite impacts known as the Ordovician impact spike, ...

The rings are theorized to have formed 466 million years ago during one of the coldest periods in the planet's history, known ...

Manitoba is well-known for its fossil record, including the fossil-filled, world-famous Ordovician-aged Tyndall Stone and the ...

A new fossil study reveals that teeth began as skin sensors, helping explain why modern teeth still react painfully to cold ...

And yet, that’s precisely what a new analysis has concluded. “Our study indicates that organisms with slender body profiles ...

Shell-rich rocks trace a mostly upward climb in ocean life, with each mass extinction slashing both diversity and biomass ...

The "Big Five" mass extinctions of the Phanerozoic Eon have long attracted significant attention from the geoscience community and the public. Among them, the Late Ordovician Mass Extinction (LOME ...

The large tubules in another Ordovician vertebrate called Eriptychius were similar in structure to these sensilla, but did contain dentine. “This shows us that ‘teeth’ can also be sensory even when ...

Specifically, the findings support the hypothesis that supernovae could have triggered two of the so-called "big five" mass extinctions: those at the end of the Ordovician Period, some 445 million ...

Now, a group of Earth scientists at Melbourne’s Monash University have asked the question “Did Earth ever have a ring?” And surprisingly the evidence they’ve uncovered points to an intriguing “yes”.

A recent study claims that Earth may have once had a ring. The theory would explain the presence of an odd density of impact craters around the equator dating back to the Ordovician period. A ring ...

Impact craters found around the Earth that were made around the same time could be linked to debris falling from a ring, a new study suggests.