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Wednesday, October 22, 2008

Megalodon shark tooth, and Great white teeth (fossils)

The jaw of a Megalodon. This picture was taken at the aquarium in Gatlinburg, Tennessee.
A piece of Megalodon tooth.
 
Megalodon lived during the Miocene and Pliocene eras, 15 million years ago. Their teeth ranged from 1.5 to 6.5 inches in length, some over 7 inches. Many Megalodon teeth have been discovered in both coasts of the U.S.A. but most occurrences are common in Virginia, the Carolinas, Georgia and Florida.

                                   Great white shark teeth

Misc. Fossilized Sharks Teeth

Sharks are a type of fish that have a skeleton of cartilage and because cartilage cannot be preserved, the sharks teeth and vertebrate are the only fossils left behind. Sharks date back to the Devonian period. These vertebrates are highly Mobile and very complex fish. Sharks have tooth like bones among their scales and numerous generations of teeth. Sharks have multiple rows of teeth in each row there are about 20 to 30 teeth. A whale shark might have 300 teeth per row. That's alot of teeth. Sharks lose many teeth at a time but they also have the ability to replace those that are lost in about 2-3 weeks. When collecting fossils choose locations like beaches, river banks and sand pits.

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