Geologic Time Flashcards by Brent Sage

Q

66 million years ago to present

A

Cenozoic

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Q

250 to 66 million years ago

A

Mesozoic

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Q

541 to 250 million years ago

A

Paleozoic

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Q

[Period] 541 – 485 Mya

A

Cambrian

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Q

[Period] 485 – 443 Mya

A

Ordovician

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Q

[Period] 443 – 419 Mya

A

Silurian

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Q

[Period] 419 – 358 Mya

A

Devonian

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Q

[Period] 358 - 323 Mya

A

Mississipian

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Q

[Period] 323 - 298 Mya

A

Pennsylvanian

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Q

[Period] 298 - 252 Mya

A

Permian

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Q

[Period] 252 – 201 Mya

A

Triassic

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Q

[Period] 201–145 Mya

A

Jurassic

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Q

[Period] 145 – 66 Mya

A

Cretaceous

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Q

[Period] 66 - 23 Mya

A

Paleogene

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Q

[Epoch] 66 - 56 Mya

A

Paleocene

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Q

[Epoch] 56 - 33 Mya

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A

Eocene

Q

[Epoch] 33 - 23 Mys

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A

Oligocene

Q

Epochs in Paleogene period

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A

Paleocene, Eocene, Oligocene

Q

[Period] 23 - 2.5 Mya

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A

Neogene

Q

[Period] 2.5 Mya - Present

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A

Quaternary

Q

Epochs in Neogene Period

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A

Miocene, Pliocene

Q

[Epoch] 23 - 5.3 Mya

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A

Miocene

Q

[Epoch] 5.3 - 2.5 Mya

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A

Pliocene

Q

[Epoch] 2.5 Mya - 11.7 thousand years ago

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A

Pleistocene

[Epoch] 11.7 thousand years ago - present

Holocene