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@rleder  Ronny,
Thank you, you welcome ! I’d be very glad and proud that it results at the end in a publication. Certainly more data from others sets would be needed and I guess more summed dentitions measurements from white sharks individuals with known TL.
Of course you can discuss this with Victor, actually we already had discussed earlier about and I’ve sent him this draft (but no response yet, I know his dissertation takes him an amount of time). I certainly think that you’ll be able to tweak the results more than I could (though I’ve made the measurements several times and always got similar results).

In addition, I also have in mind the dentition of Carcharodon hubbelli. In Ehret 2009, the complete shark has been estimated at 4.8-5.07m (using Shimada’s method and vertebra diameter calculation) and the complete summed upper crown width on one side is 313mm.
http://www.bioone.org/doi/pdf/10.1671/039.029.0113

The TL of this specimen sounds quite reliable (given it is a Carcharodon species, Shimada’s method is certainly trustable) and scaling the size of its dentition on one size to the juvenile and adult megs.

This results in 10.6-11.2m for the juvenile set and 17.6-18.2m for the adult set. Really similar to the other results from living white sharks.