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Shark Teeth St Augustine Florida


Robert Rankin

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Ok I was lucky to find these shark teeth in St Augustine last week.  But help with identification please.   My guesses are Mako top left followed by Sand Tiger and lastly a small Great White?  Or could that be an extinct Mako?  Thanks for your help.  

 

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Edited by Robert Rankin
A wrong picture was uploaded
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Top right is a Sand Tiger and bottom is a Great White. It would help to see the front of the top left tooth. I'm thinking either Isurus desori or an upper Cosmopolitodus hastalis. I'm leaning towards upper hastalis but again another photo might help. If it looks like it has broken cusps, it's a Sand Tiger too.

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Top left looks like Isurus oxyrhinchus (desori). I can see the S-curve which Carcharodon hastalis wouldn't have.

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1 hour ago, Thomas.Dodson said:

Top left looks like Isurus oxyrhinchus (desori). I can see the S-curve which Carcharodon hastalis wouldn't have.

Concur

 

OP—cute GW!

'Those who cannot remember the past are condemned to repeat it.'

George Santayana

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Thanks everyone.  I appreciate all your help and knowledge.  Fossil hunting is such great fun.   

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