Fossils are principally found in sedimentary rocks and also in some metamorphic rocks of sedimentary origin.
sedimentary rocks are what fossils are found in
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They are mostly found in Sedimentary Rocks
Fossils occur in, or can be found in sedimentary rocks and metamorphic rocks of a sedimentary origin.
In a variety of rocks, mostly sedimentary (rocks formed by sand and other material deposited by water or other forms of erosion) but fossils have been found in metamorphic rocks (rocks altered by intense heat or pressure) and even igneous rocks (rocks formed by the cooling of lava or magma), though fossils found in in the latter type of rock are only "mold" type fossils (the lava or magma would have destroyed whatever organic matter was originally in the fossil; another material later could leak into the mold and solidify, creating a rock in the exact shape of whatever had been entombed and destroyed by the lava).
sedimentary rocks
Sedimentary rocks. and metamorphic rocks made form sedimentary rocks.
Index Fossils
Index Fossils
sedimentary
sedimentary rocks
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