Permian Period and Extinction Flashcards
1
Q
Q: What group dominated as megaherbivores and megacarnivores in the Permian?
A
A: Synapsids, including Dimetrodon, gorgonopsids, and dicynodonts.
2
Q
Q: What was the impact of the end-Permian extinction?
A
A: About 70% of terrestrial vertebrates and 90-95% of marine species went extinct.
3
Q
Q: What are possible causes of the end-Permian extinction?
A
A: Volcanic eruptions (Siberian Traps), greenhouse gases, methane hydrate melting, and possibly a meteorite impact.
