Geologic History

Which set of characteristics produces a good index fossil?

• narrow time frame, wide geographic region

• wide time frame, narrow geographic region

• narrow time frame, narrow geographic region

When did a mass extinction of dinosaurs and many land plants occur?

• 65.5 mya

• 251 mya

• 300 mya

• 440 mya

Which orogenic event formed Pangaea as North America collided with Africa?

• Alleghenian

• Acadian

• Taconian

• Grenville

When did the Pliocene Epoch end?

• 0.01 mya

• 1.8 mya

• 5.3 mya

• 23.0 mya

Which letter best represents an index fossil?

• A

• B

• C

• D

During which period did the earliest insects appear on Earth?

• Jurassic

• Ordovician

• Devonian

• Silurian

Which of the following is not an era of the Phanerozoic Eon?

• Proterozoic

• Cenozoic

• Mesozoic

• Paleozoic

Which letter best represents an index fossil?

• W

• X

• Y

• Z

Which of the following index fossils is a Gastropod?

• Centroceras

• Lichenaria

• Pleurodictyum

• Maclurites

Which group of organisms is still in existence today?

• Graptolites

• Crinoids

• Eurypterids

• Trilobites