It is known as the Great Dying events in the earth history. It happened in 251.94 Ma ago. More than 90% of all marine species and 70% of the land creature had been eliminated through the world. There are many hypotheses about this event to cause.
|Permian Lived animals named Dinogorgon,|
The ocean anoxic events;
The anoxia is one of the oxygen deficiency conditions of the ocean. Due to excess amount of the oxygen consumption by the bacteria or some other organism makes the ocean water anoxic. A sulfur-induced redox reaction is another cause of the anoxic ocean. This anoxic ocean water was the threatening for the ocean creature and the small and large animals were died out during the Permian Triassic mass extinction.
Soil Erosion Events;
Due to forest fire, a huge amount of terrestrial soil input in the ocean makes the high amount of the primary production. The nutrient input from the soil makes the ocean water highly nutrient and produce a high amount of primary producers like Phytoplankton and other microorganisms. This Primary production makes the ocean water anoxic.
Global Warming events;
Scientists believe that the Permian Triassic amass extinction was due to the global warming. The relation between the global warming and the volcanic eruption has a link. If the volcano erupts then the huge amount of the CO2 makes the globe warm.
Geologist and Paleontologist Believe that the Permian Triassic Mass extinction was not a cause of a single event rather multiple events together or simultaneously happened.
The survivors of the great dying are the today’s creatures. Death creates opportunities. Hence, Survivors occupy the places.