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.
There is a misconception that fossils are just a bunch of bones that make up an old dinosaur model, but there are many other aspects to be considered when defining a fossil. The most general definition of fossils refers to the remains of an ancient organism or the traces of activity of such an organism.here are two types of fossils-the body fossils and the trace fossils. Body fossils include preserved remains of an organism (i.e. freezing, drying, petrification, permineralization, bacteria and algea).