How do we know the T-rex once existed? 20 Facts about Fossils

Friday, October 25, 2019




How do we know the T-Rex once existed? Fortunately, we have fossils that give us a record of once-living organisms. What are fossils? In this video, learn about mineralization, carbonization, casts, molds, and original materials.

There are several different types of fossils and these fossils may tell us about dinosaurs, insects, ancient tigers and much more. For example, one may only find trace fossils of footprints of dinosaurs that roamed the Earth millions of years ago. Sometimes animals may fall into tar pits and be preserved for many years.

Let's learn 25 interesting facts about fossils.

The term fossil is a Latin term which means " obtained by digging."

Mineralization is when an organism dies and its remains are replaced with minerals.

Petrified wood is an example of mineralization.

Calistoga California is home to some of the world's largest petrified trees.

Carbonization occurs when an organism dies and all that remains is a carbon outline.

A mold may create a fossil when an organism dies and creates an impression.

Bones, teeth, and shells often create molds.

Feathers are often preserved through carbonization.

Fossils are often preserved in sedimentary rocks.

The fossil skeleton of the marine reptile Mosasaurus was the first fossil to be identified as the remains of an extinct organism.

The limestone deposits of Solnhofen, Germany are famous for the discovery of the Archaeopteryx, which appears to be the perfect "missing link" between dinosaurs and birds.

Trace fossils are remains of once-living organism activity. Footprints are examples of trace fossils.

Some organisms like small insects become preserved in amber.

A paleontologist is a scientist who studies fossils.

Most fossils are the remains of extinct organisms.

The world's largest fossil is the remains of Patagotitan mayorum, the fossilized remains of a long-necked creature that was 120-feet long and weighed over 150,000 pounds.

Fossils of poop are called coprolites, and they can tell us what a creature ate.

The La Brea Tar Pits are a group of tar pits around Los Angelos and the remains of ancient organisms are found in the tar pits.

The state of Montana is a popular state for finding fossils of dinosaurs.

The first Tyrannosaurus rex fossil was discovered by the famous fossil hunter Barnum Brown in 1902.

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