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Showing posts with label Extinction. Show all posts
Showing posts with label Extinction. Show all posts

Thursday, July 9, 2020

How burning of coal contributed to End Permian Mass Extinction?

End Permian Mass Extinction
Source: Science News

An international team of geologists has found the first direct evidence that volcanic eruptions in the southern part of Siberian Traps region 252 million years ago burned a large volume of coal and vegetation.

Image Credit: Astrobiology Magazine

The end-Permian extinction, also known as the Permian-Triassic extinction event and the Great Dying, is the Earth’s most severe mass extinction that peaked about 252.3 million years ago. The catastrophe killed off nearly 96% of all marine species and 70% of terrestrial vertebrate species on the planet over the course of thousands of years. 

Calculations of seawater temperature indicate that at the peak of the extinction, the Earth underwent hot global warming, in which equatorial ocean temperatures exceeded 40 degrees Celsius (104 degrees Fahrenheit). 

Among the possible causes of this event, and one of the longest hypothesized is that massive burning coal led to catastrophic global warming, which in turn was devastating to live.....Read more.

Wednesday, July 8, 2020

Largest Land-Dwelling “Bug” of All Time

Largest Land-Dwelling “Bug” of All Time
Source: GeologyIn

The giant extinct invertebrate Arthropleura resembled some modern millipedes, but could grow to be more than one-and-a-half feet wide, and may sometimes have been more than six feet long.
 

Fossil of Arthropleura, an extinct arthropod- Took the photo at Senckenberg Museum of Frankfurt
Photo: Sven Tränkner

The giant extinct invertebrate Arthropleura resembled some modern millipedes, but could grow to be more than one-and-a-half feet wide, and may sometimes have been more than six feet long. Reconstruction of the giant millipede Arthropleura from the Pennsylvanian and earliest Permian of North America and Europe. Read more.

Previous Posts

Changes in Eccentricity (Orbit Shape) of Earth