Earth Geological History | Study Cards
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List the Eras from oldest to current
Paleozoic Era Mesozoic Era Ceriozoic Era
List the periods in the Paleozoic Era in order from oldest to recent (in that time span)
1) Cambrian Period 2) Ordovican Period 3) Silurian Period 4) Carboniferous Period 5) Permian Period
Which 2 periods in the Paleozoic Era had extinction events?
Ordovican & Permian Periods
What was the Cambrian Explosion?
when all major phyla (animals) began to appear in the fossil record. This mainly refers to marine life as the land was still barren.
Which period in the Paleozoic Era did the ancestors of modern animals appear?
Cambrian
What is the idea behind the name of the Cambrian Explosian?
named thusly because of the relatively short period of time such a diversity of life formed
What is the Ordovician Period known for?
Best known for its diverse marine invertebrates.
Describe the Ordovician Period’s Extinction Event?
Brought upon when the Supercontinent Godwana drifted South which caused it’s temperatures to drop, and caused massive glaciers to form which caused the sea level to drop
What period did terrestrial anthropods begin to colonize the land
Silurian period
When did the first jawed fish & vascular plants appeafr
Silurian period
Why was the Carboniferous Period named that
because this is where our modern coal deposits were founded
What was the extincition event for the Permian Period
Huge volcanic eruptions caused massive extinctions which killed 85& of species.
Which period had the most severe extinction event in history>
Permian Period
Which period did the continenets come together to form Pangea
Permain Period
What was the Mesozoic Era known as
The age of reptiles
List the Mesozoic Era in order
1) Triassic Period 2) Jurassic Period 3) Cretaceus Period
What species dominated the Triassic period?
Archosuars
What period in the Mesozoic era did Pangea begin to break up
Triassic Period
What was the Jurassic Period known for
When dinosuars ruled
What did frogs, salamanders, lizards, and mammals begin to appear?
In the Jurrassic Period
What was the Extinction Event in the Creataceous Period
Brought upon by an asteroid impact near the Yucatan Peninsula which triggered volcanic eruptions The volcanic eruptions caused soot and smoke to block out the sun
List the Ceriozoic Era in order
Paleogene Period Neogene Period Quaternary Period
What was the Paleogene Period known for
Characterized by the rise in mammals & the origins of apes & during this time mammals began to get larger
Which period did the continenets begin to apporach their current positions
Paleogene Period