they can, but they are mostly found underground
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∙ 15y agoFossils are the mineralised remains of organisms and contain no organic material.
There are three basic types of rock; sedimentary, igneous and metamorphic. Igneous rocks are formed by volcanic action and don't contain fossils. Sedimentary rocks are formed, usually under water, by eroded material accumulating. Metamorphic rocks are formed when sedimentary rocks are changed by heating and/or pressure. From this, you can see that sedimentary rocks are the most likely to contain fossils, although metamorphic rocks also can contain fossils. Any sedimentary rock can contain fossils, but some make fossil hunting easier. Shales and mudstones are particularly good; chalk is pretty much entirely made of fossils - it's formed of skeletons of small organisms, but its difficult to see the individual fossils.
sedimentary bedrock
The answer is Proterozoic.
YES swamps are useful to the country
fossils
dose sedeimentry contain fossils
Animal fossils contain hydroxyapatite from bones.Plants contain carbon.
fossils
fossils
The Badlands in Badlands National Park contain reptile fossils (including alligator fossils), but do not contain dinosaur fossils. Note that "Badlands" refers to a type of geographical feature, which is not only found in Badlands National Park.
some do
yes
~There are two types of swamps, forested and shrub swamps. ~In the US swamps cover approximately 100,000 square miles. ~Swamps develop in moist climates ~Swamps contain a natural filtration system that cleans the water even better than our man made factories. ( Hope this can help!)
Fossils are the mineralised remains of organisms and contain no organic material.
~There are two types of swamps, forested and shrub swamps. ~In the US swamps cover approximately 100,000 square miles. ~Swamps develop in moist climates ~Swamps contain a natural filtration system that cleans the water even better than our man made factories.
new layer of the fossils