Fossils only exist in sedimentary rocks, in some exceptional cases also in sediments which slightly metamorphosed like quartzites. Further metamorphosis destroys any fossil contained in a rock. Another exemption are deposited volcanic materials such as volcanic ash layers, which can also contain fossils.

What type of rock are fossils found in?

sedimentary rocks How do fossils form? Fossils are typically found in sedimentary rocks and occasionally some fine-grained, low-grade metamorphic rocks.

Are there fossils in sandstone?

Therefore, fossils are found in sedimentary rock, like sandstone, shale, limestone and coal. Igneous rock, like granite and basalt, is formed by molten rock erupting from deep within the earth.