Chatroulette freestyle chat room - Two types of fossil dating

Left Image: Standing behind a reconstructed Megalodon Jaw with fossil teeth at the Smithsonian Museum of Natural History in D. Right Image: Assortment of Carcharocles Megalodon Fossil Shark Teeth Found Over the Years.Name: Carcharocles Megalodon in Greek is: Carcharocles: "Famed for Jaggedness" and Megalodon: "Big Tooth" Discovery: People have been finding Fossil Shark teeth, including the large Megalodon teeth, throughout history: Pliny the Elder, around 70 AD, beleived shark teeth were triangular objects dropped from the sky during lunar eclipses. All of these markings are referred to as "Rock Art." People worldwide have been producing rock art for thousands of years.

Tooth Size: The more reliable body size estimates go up to around 60 feet. The average size of a megalodon was around 33 feet.

megalodons were a little larger than the modern day Whale Shark, and over twice as large as a Great White shark. Diet: With teeth that could reach over 7 inches, and a body more massive than a T-Rex, Megatooth sharks, particularly Carcharocles Megalodon, are undoubtedly the most infamous of all prehistoric sharks. By now, most paleontologists believe the Megatooth shark lineage dates back to the giant mackerel shark of the Paleocene, Otodus obliquus.

Location: Megalodon evolved from Carcharocles Subauriculatus sometime in the Miocene, and became extinct at the end of the Pliocene 2.6 million years ago.

It is not alive today, and has been dead for millions of years.

The oldest are usually found in rock shelters and caves where they are protected from the elements.

However, in arid climates some examples of rock art have persisted for ten to fifteen thousand years, depending upon how the art was produced, the direction that it faces, and the type of rock used as a "canvas." There are two basic types of rock art: petroglyphs and pictographs. A petroglyph is an image that is carved into a rock.

Anderton and co; Dr Ian West, A Geologic Time Scale 2004, by F. Safety notice: Fossil hunting can at times pose a risk to personal safety, in particular within environments close to the coast, cliffs or in quarries and when using the tools and equipment illustrated.

Discovering Fossils provides a free resource to inform you about this fascinating subject and does not accept any liability for decisions made using this information.

In the middle ages, Europeans thought they were "tongue stones" or petrified tongues of dragons and snakes. Native Americans used shark teeth as necklaces and even tools such as scrapers.

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