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Because sedimentary rocks are the only rocks that don't completely erode away the remains. If you had igneous rock with a skeleton in it, over a long period of time it would be gone because of all the processes.

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12y ago
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5mo ago

Fossils are mainly found in sedimentary rocks because these rocks form from layers of sediment that slowly compress and harden over time, preserving the remains of plants and animals that get trapped within them. Sedimentary rocks are more porous and easily allow for the preservation of organic material compared to other types of rocks.

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12y ago

Sediments are the ideal medium for fossil formation and preservation. An organism that is quickly covered by blowing sand, or sinks in a tar pit, or falls to the bottom of a lake or ocean and is covered by falling sediments from above stands a fairly good chance of winding up in the fossil record if the sediments become sedimentary rock. On the other hand, igneous rocks are formed from solidified magma; the odds of an organism or trace of an organism surviving exposure to molten rock is unlikely, but not unheard of. Metamorphic rock is igneous or sedimentary rock that has been transformed by heat and/or pressure. The heat and pressure may cause recrystallization, folding, or squashing of a rock that contains fossils, making the fossils unrecognizable due to distortion. Once again, fossils appearing in metamorphic rock are highly unusual, but not unheard of.

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Q: Why are fossils only found in sedimentary?
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Related questions

Are fossils found in sedimentary and metamorphic rocks?

no, fossils are found only in sedimentary rock.


Fossils are found only in .?

Sedimentary rocks


Which type of rock is where fossils are found?

They are mostly found in Sedimentary Rocks


Is there any fossils of dinosaurs?

Of curse there are, they are mainly located in sedimentary rocks, the only rocks in which fossils can be found.


What type of rocks have fossils found in them?

Fossils are nearly always found in some type of sedimentary rock. Limestone is a sedimentary rock which very commonly contains fossils, as is coal.


Why are most fossils found in sedimentay rock?

Sedimentary rocks are found only at the surface of the ground


Type of rock in which most fossils are found?

Sedimentary rock is where we look for fossils.


Most fossils are found and what type of rock?

Sedimentary


What fossils is not found in sedimentary rocks?

Amber.


Are fossils found in sedimentary rock?

Yes.


Are fossils found in the sedimentary rock?

yes


What sedimentary rock often has fossils?

Paleontologists are looking for fossils in sedimentary rock.