Earth History

This fossils is an example of?

• Trace

• Cast

• True Form

• Mold

It states that in an undeformed sequence of sedimentary rocks, the oldest will be at the bottom of the sequence while the youngest will be on top.

• Cross Cutting

• Horizontality

• Superposition

• Inclusion

The longest unit of geologic time scale.

Identify the eon shows above.

• Hadean

• Phanerozoic

• Proterozoic

• Archaean

This period is also known as the "golden age of fishes"

• Permian

• Silurian

• Ordovician

• Devonian

Identify the era.

The principle of inclusion_____?

• states that when two geologic features intersect, the one that cuts across the other is younger.

• states that if inclusions (pieces of rock) are found within a rock formation, those inclusions must be older than the formation they are included within.

• states that in an undeformed sequence of sedimentary rocks, the oldest will be at the bottom of the sequence while the youngest will be on top.

• states that undeformed sedimentary rock are deposited horizontally.

It is the “calendar” for events in Earth history.

During Permian period all the major land masses collided to form a supercontinent called

• Panthalasa

• Laurasia

• Pangaea

• Gondwanaland

They were lived during what period?