Geologic Time Scale
The geologic time scale is
What is a way scientist organize information about the history of the Earth
An index fossil has 4 main characteristics
1. Widely distributed
2. Easily recognizable
3. Short life span
4. Abundant
The person who discovered continental drift
Who is Alfred Wegener
Plates moving towards each other
What is a convergent boundary?
The current era is
What is the Cenozoic era
When a fossil is found in multiple layers of rock it is not
What is an index fossil
What is the supercontinent when all continents were connected
Plates moving away from each other
What is a divergent boundary
The current eon
What is the Phanerozoic Eon
A fossil becomes more useful when
When it is widely distributed
No one believed Alfred Wegener because
What is he had no evidence
Plates that slide next to each other
What is a transform plate boundary
The oldest eons and eras a located on the
What is the bottom of the Geologic Time Scale
When a fossil lived for a long period of time we find it
What is in multiple layers of rock
3 pieces of evidence for Continental Drift Theory are
What is continental fit evidence, fossil evidence, landform/rock evidence and glacial evidence
Convergent boundaries create
What is a mountain
There are 3 periods in the
What is the Cenozoic era
When a fossil is not widely distributed it is less useful because
Plates move this much during a year
What is about 3 cm
Transform boundaries cause
What are Earthquakes
There are 3 eras in the
What is the Phanerozoic Eon
A fossil is found in the layer above a trilobite. The trilobite lived 540-245 mya. The other fossil is approximently
What is slightly younger than the Trilobite
The Mesosauraus is found in southern Africa and Eastern South America...How?
This is because those continents used to be connected
Divergent boundaries create
What are trenches, valleys, canyons, seafloor spreading
We live in this Epoch
What is the holocene epoch
Microscopic organisms do not make good index fossils
What is they are to small and not easily accessible to scientists.
Alfred Wegener died in the year of
What is 1930
The San Andreas fault is
What is a transform boundary