geologic time/extinction Flashcards
1
Q
What are the 5 mass extinctions in order?
A
Ordovician-silurian Extinction, Devonian Extinction, Permian-triassic Extinction, Triassic-jurassic Extinction, Cretaceous-tertiary Extinction
2
Q
Which mass extinction resulted in the loss of 95% of all marine species?
A
Permian-Triassic Extinction
3
Q
Which mass extinction resulted in the extinction of the dinosaurs?
A
Cretaceous-tertiary Extinction
4
Q
When did the Ordovician-silurian Extinction take place?
A
440 million years ago
5
Q
When did the Devonian Extinction take place?
A
365 million years ago
6
Q
When did the Permian-triassic Extinction take place?
A
250 million years ago
7
Q
When did the Triassic-jurassic Extinction take place?
A
210 million years ago
