Precambrian
When did the Precambrian age begin and end?
It began 4.6 billion years ago and ended 544 million years ago.
Fun Fact: The supercontinent was called Vaalbara
Which period is not from the Paleozoic era?
Cambrian, Ordovician, Triassic, Permian, Carboniferous
Triassic Period
How long did this time period last?
179 years
Fun Fact: Dinosaurs are the dominating life form
What period do we live in?
Quaternary
What are the names of all the periods in order?
Precambrian, Paleozoic, Mesozoic, Cenozoic
Did this era contain any time periods? If so which ones.
Did not contain any periods.
What was the longest lasting period in this era?
Carboniferous
Fun Fact: Earliest forms of reptilian and amphibian life forms.
What was the longest lasting period?
Cretaceous
What is the only other period (not Quaternary) in this era?
Tertiary
Fun Fact: Tertiary lasted 65 million years
On the geologic clock, how long have humans been around?
One minute
Name three organisms that were present.
Algae, bacteria, single-celled, and organisms
Fun Fact: Some primitive plants were found
Did plants form during this era? If so during which period.
Plants formed during the Ordovician period
What were the three periods in this era?
Cretaceous, Jurassic, Triassic
Fun Fact: Conifers are the most abundant form of tree
How long has the Cenozoic era lasted? (Rough estimate)
roughly 68 million years
What is the shortest time period?
Cenozoic
What major events occurred during this time period?
Global ice age, creation of some bacteria, and starting to form more complex life
What was the shortest period in this era?
Silurian
Fun Fact: Oxygen becomes prevalent in the atmosphere
What major life form appears in this era?
Dinosaurs
What major kind of life form starts to take over
Mammals
Fun Fact: Some examples of mammals include bears, dogs, cats, seals, whales and dolphins
When did dinosaurs first form?
What was the most common type of plant?
There were no plants
Fun Facts: The beginning of this period was considered the creation of the earth.
About how long did this era last?
Around 250 million years
What event supposedly wiped out all the dinosaurs?
An asteroid impact
Fun Fact: Earliest birds are found in this era
Around what time on the geologic clock would this era fall?
Around 11:00pm
What was the longest lasting period?
Carboniferous