Eons Eras Periods Epochs

The Paleozoic Era lasted from __________ mya to __________ mya.

• 65 to 0

• 250 to 65

• 550 to 250

• 860 to 550

Tags

NGSS.MS-ESS1-4

Which of the following periods is NOT from the Cenozoic Era?

• Paleogene

• Jurassic

• Neogene

• Quaternary

These represent the greatest expanses of time on the geologic time scale.

• Geologic time scale

• Eons

• Phanerozoic

• Eras

• Paleozoic

Tags

NGSS.MS-ESS1-4

The middle era within the Phanerozoic eon is the______________, meaning middle life.

• Mesozoic

• Periods

• Epochs

• Cenozoic

• Paleozoic

Most of the geologic time scale, around 88%, is an Eon known as:

• Precambrian

• Phanerozoic

• Paleozoic

• Pleistocene

Tags

NGSS.MS-ESS1-4

Identify item #3:

• Phanerozoic

• Paleozoic

• Mesozoic

• Cenozoic

• Precambrian

Tags

NGSS.MS-ESS1-4

Identify item #2:

• Phanerozoic

• Paleozoic

• Mesozoic

• Cenozoic

• Precambrian

Tags

NGSS.MS-ESS1-4

The whole geologic history of the Earth divided into units of varying magnitude:

• Geologic time scale

• Eons

• Phanerozoic

• Eras

• Paleozoic

Tags

NGSS.MS-ESS1-4

The eon that began 542 million years ago, a term that means visible life.

• Geologic time scale

• Eons

• Phanerozoic

• Eras

• Paleozoic

Tags

NGSS.MS-ESS1-4

Eons are divided into these smaller units:

• Geologic time scale

• Eons

• Phanerozoic

• Eras

• Paleozoic

Tags

NGSS.MS-ESS1-4