Geologic Time Scale

On the geologic time scale, eras are divided in to

• Epochs
• Periods
• Indexes
• Relative dates

Tags

NGSS.MS-ESS1-4

In what era were "dinosaurs were diverse and abundant" (the dominant species)?

• Cenozoic

• Paleozoic

• Mesozoic

• Quaternary

What are the eras of the Phanerozoic Eon in order from oldest to most recent?

• Paleozoic, Cenozoic, Mesozoic
• Mesozoic, Cenozoic, Paleozoic
• Mesozoic, Paleozoic, Cenozoic
• Paleozoic Mesozoic, Cenozoic

Approximately how long ago does Earth's history date back to?

• 12 bya
• 4.6 bya
• 2 mya
• 65 mya

Tags

NGSS.MS-ESS1-4

The earliest forms (origin) of life appeared during which period?

• Paleozoic Era

• Cenozoic Era

• Precambrian Time

• Mesozoic Era

During which era did "first land plants" emerge?

• Paleozoic

• Mesozoic

• Cenozoic

• Precambrian

Tags

NGSS.MS-ESS1-4

Which is the correct order to time units from smallest to largest?

• Epoch, period, era

• Epoch, era, period

• Era, period, epoch

• Period, epoch, era

Tags

NGSS.MS-ESS1-4

The Cenozoic Era is often called "the Age of the ____"

• Dinosaurs
• Mammals
• Amphibians
• Reptiles

Which division on the geologic time scale is the shortest?

• epoch
• era
• eon
• period

Which period are we currently in?

• Quaternary

• Holocene

• Jurassic

• Tertiary