Most of the fossils can be found in various places like river valleys, cliffs and hillsides, and human-made exposures such as quarries and road cuttings. Fossils are the preserved residues of ancient organisms in the form of sedimentary rocks. A fossil can preserve the whole organism or one part of it like bones, shells, feathers, and leaves. Fossils are formed in many ways, but usually when a dead plant or animal in a watery environment and is submerged in mud and silt fossils formed. When soft tissues of an organism decompose it leaves the bones or shells behind and sediment builds on top and hardens into rock.
Types of Fossils
These are the types of fossils:
It refers to the entire remains of prehistoric organisms together with soft tissue.
Mold is an imprint left by the shell of a hard skeleton on the neighboring rock. The cast is replicas of molds produced naturally.
They are formed when the organic matter is completely changed by minerals and convert to stone.
They are footprints, trackways, trails, and holes in the mud that harden and become fossils.
They are fossilized feces that give hints to where animals lived and their diet.
Importance of Fossils
Fossils are important (https://brainly.ph/question/419177) because of the following reasons:
- It is used to date sedimentary rocks.
- Used as indicators in identifying geological periods (https://brainly.ph/question/6646588).
- Show us the history of life and the processes on Earth
.
Open the link to learn more about fossils:
What is the oldest fossil? https://brainly.ph/question/510663
#BetterWithBrainly
