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Megalodon not as big as we once thought!
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Hi, I'm one of the co-author of the 2021 lamniform body size study.
The people discussing Perez et al. 2021 article in these tweets argue about the variant phylogeny between otodontids and lamnids but curiously use methods that are based on Gottfried 1996 (vertebra diameter) and Shimada 2019 (crown height), both methods using as a proxy... Carcharodon carcharias. So their critics were quite premature and they probably did not have scrutinized the article anyway. They also ignore that the authors did consider using Cretalamna Summed Crown Width to get a TL estimate for Otodus megalodon but it was simply far too much for a single paper as they had already a sample of modern associated sets of teeth from Carcharodon and Isurus, a sample larger than the one used by Shimada for his own method anyway. They should simply use Cretalamna associated teeth and use our method on it and publish, that would be interesting. I also advise to check Jack Cooper's on going research, https://youtu.be/X4FA45QwlIA Otodus megalodon was probably not as small as some seem to wish on this thread. |
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