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Tracing the ancestry of the great white shark, Carcharodon carcharias, using morphometric analyses of fossil teeth

Publication ,  Journal Article
Nyberg, KG; Ciampaglio, CN; Wray, GA
Published in: Journal of Vertebrate Paleontology
December 11, 2006

The evolutionary origin of the great white shark (Carcharodon carcharias) is unclear, with debate centering around two principal hypotheses. The first, based on similarity in tooth shape, claims that C. carcharias originated from a group of extinct mako sharks that includes Isurus hastalis. The second hypothesis, based mostly on cladistic evidence, claims that C. carcharias originated from the same lineage as the giant megatoothed sharks, sharing a close evolutionary ancestor with the extinct Carcharodon megalodon. To distinguish between the two hypotheses we performed several morphometric analyses. In the first analysis, we used Procrustes method and principal components analysis to quantify variation between C. carcharias, I. hastalis, and C. megalodon in four different positions within the dentition. The results indicate no significant difference in tooth shape between C. carcharias and I. hastalis. In the second analysis, correlating tooth size with age, we analyzed teeth from upper anterior and lower anterior positions. For both tooth positions, we show that the growth rate of C. carcharias is more congruent with the growth rate of I. hastalis than that of C. megalodon. Finally, we used scanning electron microscopy to show that the tooth serrations of C. carcharias are distinct from those of the megatooths and more similar in size to those of slightly serrated mako teeth. Taken together, these results indicate that C. carcharias originated from an extinct group of mako sharks and not from the megatoothed sharks. © 2006 by the Society of Vertebrate Paleontology.

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Published In

Journal of Vertebrate Paleontology

DOI

ISSN

0272-4634

Publication Date

December 11, 2006

Volume

26

Issue

4

Start / End Page

806 / 814

Related Subject Headings

  • Paleontology
  • 3705 Geology
  • 3104 Evolutionary biology
  • 0603 Evolutionary Biology
  • 0602 Ecology
  • 0403 Geology
 

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Nyberg, K. G., Ciampaglio, C. N., & Wray, G. A. (2006). Tracing the ancestry of the great white shark, Carcharodon carcharias, using morphometric analyses of fossil teeth. Journal of Vertebrate Paleontology, 26(4), 806–814. https://doi.org/10.1671/0272-4634(2006)26[806:TTAOTG]2.0.CO;2
Nyberg, K. G., C. N. Ciampaglio, and G. A. Wray. “Tracing the ancestry of the great white shark, Carcharodon carcharias, using morphometric analyses of fossil teeth.” Journal of Vertebrate Paleontology 26, no. 4 (December 11, 2006): 806–14. https://doi.org/10.1671/0272-4634(2006)26[806:TTAOTG]2.0.CO;2.
Nyberg KG, Ciampaglio CN, Wray GA. Tracing the ancestry of the great white shark, Carcharodon carcharias, using morphometric analyses of fossil teeth. Journal of Vertebrate Paleontology. 2006 Dec 11;26(4):806–14.
Nyberg, K. G., et al. “Tracing the ancestry of the great white shark, Carcharodon carcharias, using morphometric analyses of fossil teeth.” Journal of Vertebrate Paleontology, vol. 26, no. 4, Dec. 2006, pp. 806–14. Scopus, doi:10.1671/0272-4634(2006)26[806:TTAOTG]2.0.CO;2.
Nyberg KG, Ciampaglio CN, Wray GA. Tracing the ancestry of the great white shark, Carcharodon carcharias, using morphometric analyses of fossil teeth. Journal of Vertebrate Paleontology. 2006 Dec 11;26(4):806–814.
Journal cover image

Published In

Journal of Vertebrate Paleontology

DOI

ISSN

0272-4634

Publication Date

December 11, 2006

Volume

26

Issue

4

Start / End Page

806 / 814

Related Subject Headings

  • Paleontology
  • 3705 Geology
  • 3104 Evolutionary biology
  • 0603 Evolutionary Biology
  • 0602 Ecology
  • 0403 Geology