JOKE?  No joke!  Anyone in the fossil & shark biz knows meg poop when they see it.  This comes from a diver in South Carolina that usually just picks up shark teeth in the Cooper River, St. John's and St. Mary's River beds.

The carcharodon megalodon lived during the Miocene Epoch – 23 to 5 million years ago.     

 Fossilized sharks teeth, vertebrae and occasionally coprolite (fossilized dung from which information about eating patterns in prehistoric times can be discovered) are found today.   Megalodon reached a length of 60 feet or more.

#PP347-E  

#PP347-1

7 oz. 3-1/4" long x 1-5/8" wide x 1-5/8" tall

#PP347-2

15.3 oz.; 4-3/8" long x 3-1/4" wide x 1-3/4" tall

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1 pound 1.4 oz.  5-1/8" long x 2-1/2" wide x 1-5/8" tall

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1 pound 9.7 oz.; 5-1/4" long x 2-3/4" wide x 2" tall

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Barnacles!  2 pound 0.6 ounces;  5-3/4" long x 3-1/2" wide x 2" tall

This small cache of pyrite/marcasite coprolite was found in a small underwater cave/cut in the river.  This is from a prehistoric "Spiny Shark" that presumably inhabited these caves/cuts and left their droppings to become fossilized.  They have been replaced by pyrite/marcasite.   Some of these still contain oyster shell fragments indicating that these sharks fed on them.  The piling/mound twisting is caused by passage of the fecal material through a bone-like flap in the anus. 

Turned to PYRITE (Fool's Gold) when it fossilized 

#PP-387   7/8" long $8

#PP388-7  1-1/8" long