Triassic–Jurassic

Definition

The Triassic–Jurassic (T-J) extinction event occurred approximately 201 million years ago and marked the boundary between the Triassic and Jurassic periods. It resulted in significant biodiversity loss, affecting both marine and terrestrial life forms.

5 Must Know Facts For Your Next Test

1. The T-J extinction event is one of the five major mass extinctions in Earth's history.
2. It led to the rise of dinosaurs as the dominant terrestrial vertebrates.
3. Volcanic activity from the Central Atlantic Magmatic Province (CAMP) is a major suspected cause.
4. Approximately 50% of all species went extinct during this period.
5. The extinction paved the way for modern ecosystems by allowing new species to evolve and diversify.

Related terms

Permian-Triassic Extinction: Occurred around 252 million years ago and is known as the most severe mass extinction event, eliminating about 90% of Earth's species.

Cretaceous-Paleogene Extinction: Happened approximately 66 million years ago, leading to the demise of non-avian dinosaurs.

Biodiversity Crisis: Refers to current rapid declines in global biodiversity due to human activities, often compared to historical mass extinctions.