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What is the Phanerozoic Eon known for?

• The Cambrian explosion and diversity of life forms

• Rapid expansion and melting of glaciers

• Extreme volcanic activity

• Splitting of Pangea

What does Paleozoic, Mesozoic, and Cenozoic mean?

• Old, middle, and new life

• Rapid climate change, changing O2 levels, and volcanic activity

• Rapid expansion and melting of glaciers

• Splitting of Pangea

What caused the end of the Devonian period?

• Rapid climate change, changing O2 levels, and volcanic activity

• The Cambrian explosion and diversity of life forms

• Extreme volcanic activity

• Splitting of Pangea

What caused the end of the Permian period?

• Extreme volcanic activity (Siberian LIP)

• Rapid expansion and melting of glaciers

• Rapid climate change, changing O2 levels, and volcanic activity

• Splitting of Pangea

What caused the end of the Triassic period?

• Splitting of Pangea

• Rapid expansion and melting of glaciers

• Extreme volcanic activity (Siberian LIP)

• Rapid climate change, changing O2 levels, and volcanic activity

What caused the end of the Ordovician period?

• Rapid expansion and melting of glaciers

• The Cambrian explosion and diversity of life forms

• Extreme volcanic activity

• Splitting of Pangea

What caused the end of the Devonian period?

• Rapid climate change, changing O2 levels, and volcanic activity

• The Cambrian explosion and diversity of life forms

• Extreme volcanic activity

• Splitting of Pangea

What caused the end of the Permian period?

• Extreme volcanic activity (Siberian LIP)

• Rapid expansion and melting of glaciers

• Rapid climate change, changing O2 levels, and volcanic activity

• Splitting of Pangea

What caused the end of the Triassic period?

• Splitting of Pangea

• Rapid expansion and melting of glaciers

• Extreme volcanic activity (Siberian LIP)

• Rapid climate change, changing O2 levels, and volcanic activity

What happened to mammals during the Cenozoic era?

• They thrived

• They became extinct

• They migrated to other continents

• They evolved into reptiles