* Igneous Rocks: Igneous rocks form from the cooling and solidification of molten rock (magma or lava). The intense heat involved in their formation would completely destroy any existing fossils. So, igneous rocks do not contain fossils.

* Sedimentary Rocks: Sedimentary rocks are formed from the accumulation and cementation of sediments. These sediments can include the remains of organisms, which can become preserved as fossils. Sedimentary rocks are the most common place to find fossils.

* Metamorphic Rocks: Metamorphic rocks form when existing rocks (igneous, sedimentary, or other metamorphic rocks) are subjected to intense heat and pressure. This process can distort or destroy fossils. While some metamorphic rocks may retain traces of fossils, they are often distorted and difficult to identify.

In summary:

* Igneous rocks: No fossils

* Sedimentary rocks: Most likely to contain fossils

* Metamorphic rocks: May contain distorted or partially preserved fossils