Precambrian
Paleozoic
Mesozoic
Cenozoic
General 1
General 2
Precambrian Mesozoic Cenozoic General 1 General 2 Paleozoic $100 $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 $500
The Precambrian Era makes up what % of all of geologic time?
88%
The organisms that created oxygen in the atmosphere 2 The organisms that created oxygen in the atmosphere 2.5 billion years ago.
Photosynthetic bacteria / algae
The oldest mineral grains found on Earth that are 4.2 byo.
zircon
Daily Half!!
Large areas of rock that serve as the foundation of continents.
shields
The name of the first fossils that are 3.5 byo.
stromatolites
The first shelled organisms, that existed for hundreds of millions of years all through the Paleozoic.
trilobites
Many new life forms appeared at the beginning of the Paleozoic Many new life forms appeared at the beginning of the Paleozoic. This is called:
Cambrian Explosion
The Paleozoic is referred to as the “Age of __.”
Life
Daily Double!!
The mountain range that formed during the Paleozoic Era.
Appalachian
The extinction event that killed 95% of species at the end of the Paleozoic was caused by this.
Marine regression
This supercontinent broke up at the beginning of the Jurassic period.
Pangaea
The mineral dust that was found all over the earth that is common in meteorites which supports the theory on dinosaur extinction.
iridium
Much of the new sea life that formed late in the Mesozoic that are still around today is referred to as ______ Fauna.
Modern
These mountains formed during the Mesozoic.
Rocky mts.
Daily Half!!
The name of the dinosaur that is linked to the development of birds.
Archaeopteryx
The Cenozoic is referred to as the “Age of ____.”
mammals
Mammals that have opposable thumbs and two eyes directed forward are called these.
primates
These mountains formed during the Cenozoic.
Himalayan
The current epoch we are in.
Holocene
A type of Homo Sapiens that became extinct 30,000 years ago.
Neanderthal
The country where the oldest rocks have been found.
Canada
The country where the oldest mineral grains have been found.
Australia
The age of the Earth and solar system was determined by testing the age of these.
Meteorites or moon rocks
Vast coal swamps were formed during this Paleozoic Period.
Carboniferous
The two types of hips that dinosaurs had.
Bird, lizard
Dinosaurs became extinct due to this.
Meteorite impact
Primates that walk upright on two legs are called these.
hominids
The Precambrian Era ended this long ago.
570 mya
Daily Double!!
The ice age epoch.
Pleistocene
Divisions in geologic time are based on this.
Significant changes in geology and biology
Final Jeopardy Topic: Mesozoic Era
List the 3 periods of the Mesozoic in order from oldest to youngest.
Triassic, Jurassic, Cretaceous