The Permian Triassic Mass Extinction
The Permian Triassic extinction was an event of cataclysmic disaster and almost the extinction of all species on planet earth. The Permian Triassic extinction is said to have occurred millions of years ago, geologist have estimated that its occurrences happened about 248 million to 286 million years ago. This rare occurrence of events proceeded the Triassic geologic periods and the Paleozoic and Mesozoic eras. This mass disaster was the largest dissipation of living life on planet earth; it is believed to be even superior to other crises such as the Ordovician and Devonian events and the conclusion of the cretaceous era that came upon the dinosaurs.
The eradication of species numbers average at a toll close to one hundred percent of earths total living creatures. “It is the Earth's most severe known extinction event, with up to 96% of all marine species and 70% of terrestrial vertebrate species becoming extinct” (Sahney, and Benton 759). Not only where marine and terrestrial species effected but this catastrophic event is the only recogni...
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- Part A Permian/Triassic extinction event: The Permian/Triassic extinction event occurred approximately 252 million years ago, it is the most devastating known extinction event, eradicating up to 96% of all marine species and 70% of land dwelling creatures, its aftermath left earth with a significantly decreased biodiversity, resulting in a slow recovery of life, over 10 million years. Marine creatures, suffering a 96% decrease in species diversity was the major group of organisms which suffered the most, due to a variety of reasons, one being the ocean acidification after an increase in carbon dioxide which affects the ability to create skeletons, as well as preventing proper breathing.... [tags: Dinosaur, Cretaceous–Tertiary extinction event]
1590 words (4.5 pages)
- Introduction The Permian-Triassic extinction event is undoubtedly the largest extinction event the Earth has ever seen. While evidence shows that it occurred over a great amount of time, it was effective in causing the extinction of an incredibly large portion of life on Earth. To such an extent that it took millions of years before any large amounts of biodiversity occurred again. This is why it is also referred to as the ‘Great Dying’. This paper will will analyze the survivability of terrestrial vertebrates compared to that of terrestrial invertebrates during the Permian-Triassic Extinction Event.... [tags: biodiversity, marine life, terrestrial life]
1520 words (4.3 pages)
- The Permian-Triassic Extinction is a mass extinction that occurred between the Permian and Triassic geologic time periods approximately 250 million years ago; it is the deadliest of all extinctions that have occurred on Earth. In addition, during the Permian-Triassic extinction the continents of today existed as one supercontinent known as Pangaea. This was the first time in history where continental or land mass exceeded that of the ocean. This was also before dinosaurs of the Triassic period roamed Earth, during this time animals such as the therapsids, and Synapsids such as the Pelycosaurs, insects and amphibians also occupied Earth.... [tags: Pangaea, Perish, CO2]
615 words (1.8 pages)
- The Permo-Triassic mass-extinction was a key event in the history of the earth. (Paleobiology and Biodiversity Research Group). This has also been informally known as the Great Dying. The Permian-Triassic extinction occurred 251.4 million years ago, forming the boundary between the Permian and Triassic geologic periods. This event was also the last periods of the Paleozoic Era. After so many years scientist still have not found the true cause behind such a horrible event. Some scientist have suggested many possible causes for the extinction such as: severe volcanism, a nearby supernova, environmental changes caused by the formation of a super continent, the devastating impact of a large ast... [tags: Animals, Plants, Life]
614 words (1.8 pages)
- Demise of the Permian- Triassic Period It is well known that there was a mass extinction killing the dinosaurs. However 185 million years before their demise, almost all life on earth was destroyed.1 There has long been theories that meteorites are the cause the of the mass extinctions and professor Asish Basu believes he may have found clues that point to space as the cause of the extinction in the Permian- Triassic period.2 The Triassic period is during a time when the earth was divided in a giant land mass: pangea, and water.... [tags: Exploratory Essays Research Papers]
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- Throughout Earth’s history there have been many changes. These changes have consisted of temperature fluctuations, atmospheric differentiations, extinctions of various plant and animal life, etc. Over time everything seems to have evolved in some way form or fashion. However, the Permian Era extinction was different from all the rest. This extinction affected every form of life, but especially the marine life. Researchers have stated that 93-97% of all Earths species went extinct during this period of time.... [tags: Paleozoic Era, global warming, species, Earth]
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- IntroductionThink of a world which existed 290 million years ago. As you look out over the terane in front of you, you think that you are on an alien planet. You see volcanoes spewing ash and lava. Beside them is the ocean which is swarming with many different species of echinoderms, bryozoans and brachiopods. As you look down onto the sea floor you are amazed at the countless number of starfish and urchins. Some animals leave you can't even describe and you have no idea even what phylum they belong to.... [tags: essays research papers fc]
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- ... 70 million years later, we have more complex life, which has moved out of the ocean making use of the land. The Late Devonian extinction is not a single event but a myriad of smaller scale extinctions such as the Kellwasser event, and the Hangenberg event that are combined to create the entirety of the major extinction event. The third mass extinction happened approximately 245 mya and is referred to as the Permian–Triassic extinction event. “More than half of the families of living things died out, and as many as 90 to 96 percent of the planet's marine species were lost.... [tags: history and evolution of Earth]
718 words (2.1 pages)
- We are on the cusp of the sixth mass extinction, as estimated the event to be occurring within 2200 years. Scientists have evidences supporting this statement with the extinction rates and magnitudes, and comparing the present conditions to the past “Big Five”—the previous five mass extinction events. Mass extinction is generally known as the forever disappearance of 75% of lives in the globe, therefore species lost is the main driver of such extinction events. With the current high extinction rates and increasing trend of extinction magnitudes, the sixth mass extinction is expected.... [tags: Volcanic Eruption, Climate Dynamics]
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- As titled: Are We On The Cusp Of The Sixth Mass Extinction Event. Yes, we are indeed, as we, here defined as all the lives on the Earth at the moment. Mass extinction is times when the Earth loses more than three-quarters of its species in a geologically short interval (Barnosky et al., 2011). In addition, according to the Oxford Dictionary of Geology and Earth Sciences edited by Michael Allaby (2013), mass extinction is defined as the Earth has been taken place environmental catastrophe, removes many groups from environment from record and not replaced, and ecosystems collapse.... [tags: environmental catastrophe, Geology]
608 words (1.7 pages)
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