Fossils/Geo Time

Longest subdivision in the geo time scale that is based on the abundance of certain types of fossils

• Eon

• Era

• Period

• Epoch

A group of animals that breed together

• Pack

• Gaggle

• Species

• Flock

Where an organism survives based on traits, AKA survival of the fittest

• Artificial selection

• Species

• Uniformitarianism

• Natural selection

Paleozoic, Mesozoic, and Cenozoic are classified as _________

• Periods

• Eons

• Eras

• Epochs

Longest part of Earth's history, lasting from 4 billion to about 544 million years ago.

• Precambrian

• Cenozoic

• Cambrian

• Mesozoic

A break or gap in the sequence of a series of rock layers due to erosion

• Tilting

• Unconformity

• Law of superposition

• Cross-cutting

List the expanses of time in the Geologic Time Scale in order from longest to shortest

• Eon, Period, Era, Epoch

• Era, Eon, Epoch, Period

• Epoch, Period, Era, Eon

• Eon, Era, Period, Epoch

In what time do we currently live?

• Cenozoic Era, Quaternary Period, Holocene Epoch

• Mesozoic Era, Quarter Period, Holograph Epoch

• Paleozoic Era, Cambrian Period, Recent Epoch

• Cenozoic Era, Paleogene Period, Pliocene Epoch

Name the first organism to appear on Earth

• worms

• jellyfish

• fish

• cyanobacteria

This fossil lived in many different places on Earth but only for a short period of time

• trace fossil

• mold

• permineralized remains

• index fossil