What layer of the Earth are fossils found in?

The Earth has three different sections from exterior to interior they are crust, mantle and core. Fossils are only found in the crust. Then they are, almost always, found in sedimentary rocks, not igneous and not metamorphic. Although extremely rare fossils have been found in both those rock types also. read more

Fossils are found all over the earth with only moderate digging, even though different layers are exposed at different places on the earth. Basically, macroscopic life that leaves fossils has been around since the Precambrian era, so fossils will appear in any layer from that age until the present. read more

Rock layers are usually ordered with the oldest layers on the bottom, and the most recent layers on top. The Law of Faunal Succession explains that fossils found in rock layers are also ordered in this way. The Three Layer Cake There are thousands upon thousands of layers in the earth's crust. read more

We study Earth's history by studying the record of past events that is preserved in the rocks. The layers of the rocks are the pages in our history book. Most of the rocks exposed at the surface of Earth are sedimentary--formed from particles of older rocks that have been broken apart by water or wind. read more