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Index fossils provide a reference of time throughout rock layers. In order to be a good index fossil, the life form must have lived for a short and specific amount of time and must have existed over a large area. Index fossils serve as a reference to geologists in correlating rock layers. They can match up (or correlate) the index fossils which helps them match up (or correlate) the rock layers.
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In what ways are fossils useful to geologists?
In what ways are fossils useful to geologist?
What do geologist use index fossils for?
to date a rock layer and other fossils within that layer
What fossils are useful in determining the relative age of rocks?
Index fossils
What fossils are helpful to geologist because they reveal the relative ages of the rock layers in which they occur?
Those types of fossils are called index fossils.
What are index fossils useful for?
Because organisms that became index fossils lived only during specific intervals of geologic time, geologists can estimate the ages of rock layers based on the particular index fossils they contain.
Why are index fossils are more useful to paleontologists than many other fossils?
im trying to figure that out myself
Why are index fossils useful for figure out the age of a set of disturbed rock layers?
index fossils are useful for figuring out the age of a set of disturbed rock layers by index fossils are used to determine when rock layers were formed so if they were used to figure out the age of a set of disturbed rock layers than they can also figure out when they were formed .
Why are index fossils more useful then other fossils to paleontologist?
Index fossils are useful to paleontologists because they are easily recognizable, widespread, and existed for a relatively short period of time. This allows scientists to date the rock layers in which they are found, helping to establish the relative ages of different strata. Additionally, index fossils help correlate rock layers from different locations, aiding in the reconstruction of Earth's history.
Why are the Eurypterids in these cross sections not useful as index fossils?
The Eurypterids in these cross sections not useful as index fossil because they are only found in certain areas are a long lived organism
Why are index fossils so important to geologists?
Index fossils are very important to geologists because they identify geological time periods. Index fossils are found within a specific layer of rock- So when one finds the age of the rock layer, that is also the age of the index fossil.
Would horseshoe crabs be useful as index fossils?
No because they have been alive for a very long time
What is a fossil used to date surrounding rock layers called?
A fossil used to date surrounding rock layers is called a index fossil. Index fossils are particularly useful for determining the relative ages of rock layers in different locations.
