The Permian–Triassic Extinction Event (The Great Dying)
World Conditions
Time Period
Permian–Triassic Boundary (End-Permian Extinction).
This event occurred about 252 million years ago at the boundary between the Permian Period and Triassic Period. It marks the transition from the Paleozoic Era to the Mesozoic Era within the Phanerozoic Eon. The main extinction phase lasted roughly 60,000 years, with environmental effects continuing for millions of years afterward.
Earth became extremely hot and dry, with rising carbon dioxide levels and reduced oxygen in the atmosphere. The oceans grew warmer, acidic, and low in oxygen, killing many marine organisms. Most land was joined as the supercontinent Pangaea, which caused massive deserts and harsh climates. Life included early reptiles, amphibians, insects, corals, and many marine species, but most did not survive.
Major Event
Interesting Facts
The largest mass extinction in Earth’s history occurred, eliminating around 90–96% of marine species and about 70% of land vertebrates. Massive volcanic eruptions in Siberia released greenhouse gases, causing extreme global warming, acid rain, and ocean oxygen loss. Food chains collapsed, leading to widespread extinction.
• Largest extinction event ever recorded • Coral reefs disappeared for millions of years • Many insects also went extinct • Event allowed dinosaurs to later rise • Recovery took over 10 million years
References U.S. Geological Survey – The Permian Extinction National Geographic Society – Permian–Triassic Extinction Event
Opportunities
Contextualize your topic
- Plan the structure of your communication.
- Give it a hierarchy and give visual weight to the main point.
- Add secondary messages with interactivity.
- Establish a flow through the content.
- Measure results.
Threats
Contextualize your topic
- Plan the structure of your communication.
- Give it a hierarchy and give visual weight to the main point.
- Add secondary messages with interactivity.
- Establish a flow through the content.
- Measure results.
The Permian–Triassic Extinction Event (The Great Dying)
Abdullah Shahzad
Created on February 23, 2026
Start designing with a free template
Discover more than 1500 professional designs like these:
View
Fishbone Diagram
View
Puzzle Diagram
View
Gear Diagram
View
Square Timeline Diagram
View
Timeline Diagram
View
Timeline Diagram 3
View
Timeline Diagram 4
Explore all templates
Transcript
The Permian–Triassic Extinction Event (The Great Dying)
World Conditions
Time Period
Permian–Triassic Boundary (End-Permian Extinction). This event occurred about 252 million years ago at the boundary between the Permian Period and Triassic Period. It marks the transition from the Paleozoic Era to the Mesozoic Era within the Phanerozoic Eon. The main extinction phase lasted roughly 60,000 years, with environmental effects continuing for millions of years afterward.
Earth became extremely hot and dry, with rising carbon dioxide levels and reduced oxygen in the atmosphere. The oceans grew warmer, acidic, and low in oxygen, killing many marine organisms. Most land was joined as the supercontinent Pangaea, which caused massive deserts and harsh climates. Life included early reptiles, amphibians, insects, corals, and many marine species, but most did not survive.
Major Event
Interesting Facts
The largest mass extinction in Earth’s history occurred, eliminating around 90–96% of marine species and about 70% of land vertebrates. Massive volcanic eruptions in Siberia released greenhouse gases, causing extreme global warming, acid rain, and ocean oxygen loss. Food chains collapsed, leading to widespread extinction.
• Largest extinction event ever recorded • Coral reefs disappeared for millions of years • Many insects also went extinct • Event allowed dinosaurs to later rise • Recovery took over 10 million years
References U.S. Geological Survey – The Permian Extinction National Geographic Society – Permian–Triassic Extinction Event
Opportunities
Contextualize your topic
Threats
Contextualize your topic