January 19, 2018  
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Edisto River Isurus Praecursor Mako Shark Tooth   Colleton County, South Carolina, USA - Isurus praecursor
The blade on this tooth is super sharp. I want to say this is a Isurus Praecursor. These teeth are known to be Eocene in age. I found it lying above the green clay in the Edisto.
...
An almost 3" I. praecursor from NJ   Monmouth County, New Jersey, USA - Isurus praecursor
The biggest tooth I've ever found of any kind from NJ.  The root and crown were broken but a little PaleoBond and it was almost as good as new....
little eocene mako   Monmouth County, New Jersey, USA - Isurus praecursor
only moderately reworked, if at all. ...
Isurus Praecursor Shark Tooth   Dorchester County, South Carolina, USA - Isurus praecursor
This is the first tooth of any size that I found today. I saw it from 10 feet away when the sun shined off it....
1 1/8" Eocene Mako Shark Tooth   Monmouth County, New Jersey, USA - Isurus praecursor
This was the heartbreaker of the day. It looked perfect from the labial side but my heart sank when I flipped it over. The gloomy feeling didn't last long as I realized that it was still an awesome tooth - cool cusps!...
1 1/8" Eocene Mako Shark Tooth   Monmouth County, New Jersey, USA - Isurus praecursor
This was the heartbreaker of the day. It looked perfect from the lingual side but my heart sank when I flipped it over. The gloomy feeling didn't last long as I realized that it was still an awesome tooth - cool cusps!...
1 3/16" Eocene Mako Tooth   Monmouth County, New Jersey, USA - Isurus praecursor
This tooth came out of one of the few places where the raw Eocene formation is exposed in this stream. I had to shovel in the equivalent of three or four screen fulls of black sand to get the screen bottom covered with gravel. I usually find beat up Striatolamia teeth and even a Ric blade or two, but this was the last thing I was expecting. The tooth was in absolutely pristine condition when I found it, though after a fall on my kitchen floor (Ahhhhh!), one of the root lobes chipped. It now live...
1 3/16" Eocene Mako Tooth   Manatee County, Florida, USA - Isurus praecursor
This tooth came out of one of the few places where the raw Eocene formation is exposed in this stream. I had to shovel in the equivalent of three or four screen fulls of black sand to get the screen bottom covered with gravel. I usually find beat up Striatolamna teeth and even a Ric blade or two, but this was the last thing I was expecting to pop up. The tooth was in absolutely pristine condition when I found it, though after a fall on my kitchen floor (Ahhhhh!), one of the root lobes chipped. I...
Eocene Fossil Mako   Dorchester County, South Carolina, USA - Isurus praecursor
1" Mako Razor Sharp...
Eocene Mako Shark Tooth   Dorchester County, South Carolina, USA - Isurus praecursor
Eocene Mako Shark Tooth
1 1/4" Eocene Mako Shark Tooth   Dorchester County, South Carolina, USA - Isurus praecursor
1 1/4" Eocene Mako Shark Tooth
1 3/4" Eocene Mako Shark Tooth   Dorchester County, South Carolina, USA - Isurus praecursor
1 3/4" Eocene Mako Shark Tooth
3/4" Eocene Mako Shark Tooth   Dorchester County, South Carolina, USA - Isurus praecursor
3/4" Eocene Mako Shark Tooth
3/8" Mako Shark Tooth   Dorchester County, South Carolina, USA - Isurus praecursor
I believe this is a back tooth of a praecursor mako and its almost all root. This little thing is so bad it can stand on its root like the big ricks....
1 7/16" Mako   Dorchester County, South Carolina, USA - Isurus praecursor
Just a little gem....
1" Eocene Mako Shark Tooth   Dorchester County, South Carolina, USA - Isurus praecursor
1" Eocene Mako Shark Tooth
1 13/16" Eocene Mako Shark Tooth   Dorchester County, South Carolina, USA - Isurus praecursor
I found this tooth on the way back to the truck at the end of an already great day at Lafarge. I was carrying a 25 pound vertebra over my back, but still I was scanning the ground for any last scraps. Its amazing that a tooth this awesome and exposed wasn't found earlier....
1" Eocene Mako Shark Tooth   Dorchester County, South Carolina, USA - Isurus praecursor
1" Eocene Mako Shark Tooth
1 3/16" Eocene Mako Shark Tooth   Dorchester County, South Carolina, USA - Isurus praecursor
1 3/16" Eocene Mako Shark Tooth
1 3/8" Eocene Mako Shark Tooth   Dorchester County, South Carolina, USA - Isurus praecursor
1 3/8" Eocene Mako Shark Tooth
1" Eocene Mako Shark Tooth   Dorchester County, South Carolina, USA - Isurus praecursor
This isn't the biggest I. Praecursor I've ever seen, but it’s the best I've found to date. The last time I went to the mine I found one, but it was pitted all over the root so I couldn't bring myself to put up a closeup. This one is killer, though, and is a good representative specimen. The red on the tip is kinda cool looking....
1 3/8" Eocene Mako Shark tooth   Dorchester County, South Carolina, USA - Isurus praecursor
A perfect lower tooth....
  

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