For a basic 500 square feet project in zip code 47474, the benchmark cost to Insulate Your Home ranges between $0.63 - $1.43 per square foot* . To estimate costs for your project: 1.
So in answer to your question, the oldest fossils are stromatolites, and the life forms that created those fossils were prokaryotic bacteria and algae like cyanobacteria.
Fossils are imprints left during the decay of a plant or animal. They are buried within sediments that are not disturbed for long periods. Mud is often a medium for fossil development since is can become shale or limestone over time.The study of various types of fossils have allowed us to learn about the structure and behavior of life many thousands of years ago.rue-form fossils are body parts of an animal or remains of a substance. They are often formed when the organism is caught in ice, tree sap or tar. Complete features are left behind.