Sharks Teeth

 Shark Teeth - Florida

Sand Shark
Tiger Shark
Extinct Tiger
Lemon
Mako
Bull
Extinct Sand
Dusky
Hemipristis
Extinct Mako
Carcharodon Megalodon
Modern Bull Shark Jaw
Carcharodon Megalodon
Mako
Dusky
Lemon
White Tip
Tiber
Bull
Sand

This Curteich postcard is unused and was bought in 2007.
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A similar postcard ...

Shark Teeth

All of the darker teeth are fossilized and are from 1.8 to 65 million years old, while the white teeth are from modern sharks.  The jawbone in the center is from a Bull Shark, and the two large dark teeth are from a long extinct species that grew over 65 feet in length.  Notice that there has been little change in the shape of these teeth even after millions of years!

Tiger
Bull
Great White
Snaggletooth
Black Tip
Carcharodon Megalodon
Hammerhead
Modern Bull Shark Jaw
Tiger
Carcharodon Megalodon
Lemon
Mako
Bull
Great White
Bull
Mako

This card was bought in 2009.
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Here is a postcard of the rows of teeth on a Sand Tiger Shark

Virginia Aquarium
& Marine Science Center

Sharks

Sand tiger sharks are found throughout the world's temperate oceans; they can grow to nearly 10 and one-half feet and weigh over 250 pounds.

Photos Mary Lindjhem and Chuck Steenburgh

This one is postmarked in 2009 with a USA printed flower stamp for 27 cents from Zazzle.