The Permian Extinction.
Dr Roger Smith of the South African Museum shows where the dark Permian soil has been overlaid by reddish post apocalyptic mudstone, that delineates an event that wiped out around 95% of all species 252 million yrs ago.
The Mother of All Extinctions.
National Geographic.
Steemit. Club Scientifico.
Whale Bones on Mars.
Mass extinction data that neglects the visible record on Planet Mars is entirely out of date, shots returned by the NASA Curiosity, Opportunity & Spirit Mars Rovers indicate the shallow sea that covered much of the planet actually boiled away, which means atmospheric pressure must have suffered a dramatic fall, postulate the same type of Solar events [flares] that caused Mars seas to boil have caused periodic mass extinctions on Earth.
Video - Synapsid. UMD.edu.
There were no dinosaurs in the pre Permian Triassic era, the major lifeforms were mammal like reptiles called Synapsids like the Dimetrodon above, the dinos eventually appeared after evolution got underway again around 10 million yrs after the Permian event, and were wiped out approximately 176 million yrs after that at 66 million years ago in a similar extinction called the Cretaceous Catastrophe, which in this model was also the result of Solar flares.
Wiki.
Quartz.
Creatures that survived the Permian extinction include certain types of marine shellfish, sharks, byozoans which are a group of small animals resembling corals, crinoids relatives of starfishes, ammonoids including the chambered nautilus, the coelacanth and horseshoe crabs. Paleobiology.si.edu.
Despite Mars' very shallow seas boiled away completely and its atmosphere vaporized, on Earth the actual period of lessened atmospheric pressure, that caused the lakes and rivers and the top layers of sea water to boil off was fairly short, water pressure in the deep seas and in the deepest freshwater lakes and rivers prevented their boiling, while the atmosphere had regained enough pressure to halt the process before the wave of boiling gained the depths, unlike on Mars where the atmosphere never regained sufficient pressure for liquid water to exist.
Benjamin Burger, The Permian / Triassic Boundary in the Rocks of Utah.
Permian / Triassic Boundary in Eastern Nevada & West Central Utah.
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