Types of Fossils
How long does it take a fossil to form?
10,000 years
DOUBLE JEOPARDY: How is the fossilized skeleton of a dinosaur similar to the modern skeleton of a lizard?
The both have a backbone and tail.
How long does it take a fossil to form?
10,000 years
What evidence do we have that Utah has changed?
Fossils
What is a structure?
Name the three items most likely to become a preserved body fossil.
Teeth, bones, and shells
What fossil evidence shows that parts of Utah were once part of an ancient sea ocean?
We have found marine fossils, such as trilobites
In which type of rock are fossils found?
sedimentary
Why don't the soft parts get fossilized?
they decompose
What is a function?
How a structure helps an organism survive.
How many types of fossils are there?
2
How do we know different kinds of plants and animals lived in Utah a long time ago?
We find fossils of them
Why are fossils found in sedimentary rock?
because heat and pressure would destroy the fossil
What fossil evidence does a skull have to show that an animal was once a predator or a carnivore?
sharp teeth, forward facing eyes, holes in skull
What do dinosaur tracks tell us about the environment in Utah's past?
Utah was once a warm paradise.
What are the two types of fossils?
Trace and body fossils
blunt teeth, eyes on the side of the head, defensive body parts (horns)
In layers of rock, which are the oldest layers?
The oldest layers are on the bottom.
DOUBLE JEOPARDY:
Check out the Mammoth vs Elephant.
List two similarities between the animals.
List two differences between the animals. (question 13 had the picture)
Similarities: the both have tusks, trunks, four legs, tails, large stomach
Differences: size, fur, tusk size
Why do you think the Sabre-tooth cat went extinct in Utah?
Well they lived during the ice age and the environment has changed in Utah. Or wooly mammoths went extinct so they didn’t have enough food sources or whatever.
What is a fossil?
any remains or evidence of an ancient organism.
Fossils show that the main cause of dinosaur extinction was?
Climate Change
Do question 15 in the review packet?
stable:
4 legs, brown color, ears forward, eyes on
the side, basic body shape
Changed:
Size, height, stripes, 4 toes to 1 toe or
hoof, darker color, mane looks longer, tail
looks longer etc. looks more muscley I’d
say stronger faster, back shaped changed
to a dip rather than a hump etc.
Identify two structures that helped the mammoth to survive during the ice age. (Picture Question 13)
Tusks, defend
Size, scare off predators
Fur, warmth
What are examples of trace impressions?
footprints, teeth marks, burrows, tracks, tail prints