GEOLOGY

Detailed explanation-1: -Fossils are commonly found in sedimentary rocks. Sedimentary rocks are the most common type of rock since they are formed by the earth’s natural forces like wind and water. Q. Sometimes igneous and sedimentary rocks are changed into metamorphic rocks.

Detailed explanation-2: -Mudstone, shale, and limestone are examples of sedimentary rock likely to contain fossils. As the layers of sediment build up on top of one another, they create a physical timeline.

Detailed explanation-3: -Of the sedimentary rocks, most fossils occur in shale, limestone and sandstone.