Types of fossils
Traces or remains of living things from long ago.
What is a fossil?
This is the type of rock in which most fossils are found.
What are sedimentary rocks?
A law that states the oldest layer is deeper than the layer on the top if it is undisturbed
What is the law of superposition?
What is the largest time frame included in the geologic time scale?
Era
Which era was ended with a mass extinction caused by lowering sea levels and increased volcanic activity?
Paleozoic
This is the period in which land plants first appeared.
What is the Silurian period?
List three different materials original remains can be fully preserved. Bonus point?
What are ice, amber, and tar? Bonus point for peat or peat bogs.
This type of fossil is formed when mineral deposits replace decayed bone and tissue and harden.
What are petrified fossils?
This is the term we use to indicate the true or actual age of an event or object.
What is the absolute age?
This is the Era in which we currently live.
What is the Cenozoic Era?
Which era ended after the mass extinction caused by a comet or asteroid impact?
Mesozoic
This is the period in which Amphibians first sppeared.
What is the Mississippian Period?
Type of fossil that fills a mold with sediments and hardens to take that shape?
Cast Fossil
This type of dating can give a much more exact age of fossils.
Radioactive dating?
This is the age of an event or object in relation to other events or objects.
What is the relative age?
What is the era during which the dinosaurs went extinct?
The Mesozoic era
These are the steps that led to the mass extinction of the dinosaurs.
What are1. Asteroid Impact; 2. huge cloud of smoke and dust; 3. sun blocked out; 4. plants die: 5.animals that eat plants die; 6. animals that eat animals that eat plants die
This period lasted from 408 MYA to 360 MYA.
What is the Devonian period?
What is the name of the type of fossil that include footprints, trails, animal holes, and even feces.
What are trace fossils?
What type of information can be learned from fossils?
Age, location, habitat, group interaction, etc.
During this period, the coal we burn today was formed.
What is the Carboniferous or PA or MS?
This is the order of the eras from oldest to youngest after the Precambrian Era.
What are the Paleozoic, Mesozoic, and Cenozoic eras?
This is how long the longest Era in Earth's History was.
What is the Precambrian Era was 4.2-4.3 billion years long.
This is the period in which jawless fish first appeared.
What is the Ordovician period?
What is the special name we give fossils of organisms that were common, that lived in many areas, that existed only for relatively short time periods, and can be used to date rock layers and other fossils?
What are index fossils?
What three mountain ranges were formed during the Cenozoic Era?
United States- _____________
India- _______________
Europe- ______________
What are
Rocky Mountains
Himalayan
Alps
This is how much longer the Paleozoic Era was than the Mesozoic Era.
What is 120 million years?
Pangaea began to spilt up during this period.
What is the the Permian period?
Tell which Era:
Age of Reptiles _________
Age of Trilobites ________
Age of Mammals _________
Age of Fish _________
Mesozoic
Paleozoic
Cenozoic
Paleozoic
The first arachnid appeared during this period.
What is a conifer and when did they emerge?
What is a cone-bearing tree and the Permian period?
During which period did Archaeopteryx evolve and what is it better known as?
What is during the Jurassic and it was the first feathered bird?
During this period the first mammals evolved.
What is the Triassic period?
This dinosaur was the first to evolve hollow bones.
What is Coelophysis?
Did Tyrannosaurus rex eat Apatosauruses? Why or why not.
What is they did not, because Apatosauruses had gone extinct before T rexes evolved.
The flowering Magnolia is what type of plant and appeared during which period?
It is an angiosperm and appeared during the Cretaceous period.