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Sharks teeth ID from Oak Island, NC


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jgheels2003

I recently found these beginning on June 2021 on the beach at Oak Island, NC. Curious as to what exactly a couple of these teeth actually are. I have some suspicions but I defer to the resident experts. Thank you! The two isolated on the first two pictures and the bottom 5 from left to right on the 3rd row (Mako??)

5E1ABB35-66CF-421D-81BC-69A37F8602BA.jpeg

FB86B4E2-F52D-474C-B862-D69FAE1D5285.jpeg

89BA3FB5-C64B-49C4-8A1A-FC13F0BFDC5C.jpeg

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hemipristis
9 hours ago, jgheels2003 said:

I recently found these beginning on June 2021 on the beach at Oak Island, NC. Curious as to what exactly a couple of these teeth actually are. I have some suspicions but I defer to the resident experts. Thank you! The two isolated on the first two pictures and the bottom 5 from left to right on the 3rd row (Mako??)

5E1ABB35-66CF-421D-81BC-69A37F8602BA.jpeg

FB86B4E2-F52D-474C-B862-D69FAE1D5285.jpeg

 

The larger tooth would qualify as a 'mako',  Isurus sp.  If I had to pick a species, I. desori or I. precursor.  Float teeth on the southern NC beaches could be from a variety of ages, and without stratigraphic data, sometimes it's difficult to get beyond genus.  Nice tooth, regardless

 

The smaller of the two is probably one of the 'sand tigers', but without the roots or cusplets, there are a lot of candidates to pick from

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hemipristis
9 hours ago, jgheels2003 said:

89BA3FB5-C64B-49C4-8A1A-FC13F0BFDC5C.jpeg

 

Middle row, left to right:

1. Genus Carcharhinus, likely C  plumbeus, the sandbar shark

2. Genus Carcharhinus, looks like C. perezii, Caribbean reef shark

3. Genus Carcharhinus, maybe a bull shark, C. leucas

4. Carcharhinus sp. lower tooth

5. Negaprion sp., lemon shark

 

Bottom row, left to right:

1 & 4. Sand shark, Carcharias sp

2 $ 3. Sand shark, Odontaspis spp (?)

5. Sand shark, unsure of the genus.  Looks like one of the Eocene species

6. Genus Carcharhinus, likely C  plumbeus, the sandbar shark

 

 

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jgheels2003

Thank you so much for your response! Educational for sure, I know have a good reference for reading about them.

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hemipristis
23 hours ago, jgheels2003 said:

Thank you so much for your response! Educational for sure, I know have a good reference for reading about them.

You are very welcome!

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