Those types of fossils are called index fossils.
Igneous rocks.
sedamentary rock:p
bed rock.
Sedimentary rock is the most common type of rock that contains fossils. Fossils are formed when the remains of plants and animals are buried in sediment, which hardens into sedimentary rock over time, preserving the fossilized organisms.
Fossils are most likely to be found in sedimentary rock.
The kind of rock is sedimentary.
layer rocks
obsidian
sedimentary rocks.
Sedimentary rock
Fossils are nearly always found in some type of sedimentary rock. Limestone is a sedimentary rock which very commonly contains fossils, as is coal.
Those types of fossils are called index fossils.
sedimentary
sedimentary rocks.
Igneous rocks.
Nearly all fossils are found in sedimentary rock.