Jurassic World Movies

The Five Mass Extinctions Ranked by Severity

11,088 Views5 RepliesAdd A Reply
Forum Topic

I Meme Everything

AllosaurusMember4115 XPAug-03-2018 6:04 PM

5. Devonian Extinction

Image result for devonian extinction

This extinction killed off 75% of all species alive at the time. An exact cause is unknown, although a meteor impact and/or climate change have been suggested, as well as plants messing with the soil. The sea was drained of oxygen, wiping out Trilobites, one of the time's most successful species.

 

4. Cretaceous Extinction

Image result for cretaceous extinction

This is easily the most famous and well-known of the five mass extinction events. It wiped out the non-avian dinosaurs, pterosaurs, and marine reptiles. The most widely-accepted theories are an increase in volcanic activity (which will pop up many times on this list) and/or the meteor strike in the Yucatan Peninsula. The meteor would've sent tons of flaming debris hurtling down, destroying plants. Tsunamis would decimate the coastlines and acid rain would sear animals alive. Debris hurtled into the atmosphere by the impact would block out the sunlight, killing any plants spared by the onslaught. With nothing to eat, herbivores like Triceratops and Ankylosaurus would starve to death. With their main food source gone, carnivores like Dakotaraptor and Tyrannosaurus rex would resort to cannibalism before being starved into extinction. Overall, 76% of all species were annihilated.

 

3. Triassic Extinction

Image result for triassic extinction

Millions of years before the dinosaurs met their demise, they were the survivors of an even greater extinction; the one that ended the Triassic. It is the most mysterious of the big five, with the main cause unknown. The most-accepted theory is that volcanic activity caused by the breaking up of Pangaea killed many of the life forms at the time. The total count was 80% of species being lost to history.

 

2. Ordovician Extinction

Image result for ordovician extinction

This was the first of the big five, and the second-worst in history. Back in the Ordovician Period, most life dwelled in the seas. It is believed that the cause was the start of an ice age, which screwed up the ocean's chemistry. 86% of species died out.

 

1. Permian Extinction

Image result for permian extinction

By far the most devastating and severe extinction in Earth's history is the End Permian Extinction, commonly nicknamed the Great Dying. It was most likely caused by a mass eruption of the Siberian Traps, which drastically changed the climate. Lava burned plants and animals alive, also drastically increasing the amount of greenhouse gases in the atmosphere. Weather patterns were thrown off into chaotic cycles and bacteria released methane, circulated worldwide by winds. Acid rain struck from above, killing both plants and animals. The ocean was hit the hardest, with 95% of all aquatic species dying out. Things weren't much better on land, where 70% of species were lost. However, as a testament to life's resilience, there were survivors. In the oceans, sharks and some fish species survived. On land, reptiles like Proterosuchus survived into the Triassic, giving rise to the dinosaurs, who would, in time, dominate the Earth.

"Part of the journey is the end..."

5 Responses to The Five Mass Extinctions Ranked by Severity

GG

AllosaurusModerator3811 XPAug-03-2018 6:09 PM

^Proterosuchus

Good grief.

I Meme Everything

AllosaurusMember4115 XPAug-03-2018 6:10 PM

^"I'm a survivor."

"Part of the journey is the end..."

Ultrazero80

StegosaurusMember934 XPAug-03-2018 6:11 PM

Interesting read, Tyrannos. I haven't heard of the Orodovician extinction, until now.

Godzilla... Truly a God incarnate.

Xenotaris

AllosaurusMember4251 XPAug-05-2018 11:45 PM

Hey you forgot the Great Oxygen Catastrophe 

ALIEN VERSUS PREDATOR UNIVERSE

Xenotaris

AllosaurusMember4251 XPAug-05-2018 11:45 PM

Edit: damn i double posted!

ALIEN VERSUS PREDATOR UNIVERSE
Add A Reply
Log in to Post
Enter Your E-Mail
Enter Your Password

Stay Logged In
Jurassic Park/World Jurassic Park Fandom
Jurassic World Movies Forums
Dinosaurs
Dinosaurs Talk About Dinosaurs
Jurassic World
Jurassic World Discuss Jurassic World Here
Jurassic Park
Jurassic Park Discuss Jurassic Park 1 - 3
Jurassic Park Games
Jurassic Park Games Talk About Jurassic Park Games
Jurassic World Fan Artwork
Jurassic World Fan Artwork Share your Jurassic World fan art here
Jurassic World Merchandise
Jurassic World Merchandise Discuss Jurassic World merchandise here
Hot Forum Topics
New Forum Topics
Highest Forum Ranks Unlocked
Xenotaris
Xenotaris
85% To Next Rank
Allosaurus
BRUBBLES
BRUBBLES
10% To Next Rank
Compsognathus
Latest Jurassic Fandom Activity
Member
Shobin50 just posted a new review for Godzilla Minus One and rated the film 5 out of 5. See why they rated Godzilla Minus One this way, by reading their full review!

JurassicWorld-Movies.com is a fan website dedicated to all things Jurassic Park and Jurassic World! This website was developed, created and is maintained by Jurassic Park fans and is not officially affiliated with Universal Pictures, Amblin Entertainment or any other respective owners of Jurassic World IP.

© 2024 Scified.com
Sign in
Use your Scified Account to sign in


Log in to view your personalized notifications across Scified!

Alien Alien-Covenant.com
Cloverfield Cloverfield-Movies.com
Godzilla Godzilla-Movies.com
Jurassic World JurassicWorld-Movies.com
Predator Predator-Movies.com
Aliens vs. Predator AliensVersusPredator.net
Latest Activity
Forums
Search Scified
Trending Articles
Blogs & Editorials