Abstract
Deinosuchus is a giant crocodylian from the Late Cretaceous period of North America. It was 8 to 10 metres long and weighed between 2,500 and 5,000 kg, three to five times more than the largest crocodiles alive today. How Deinosuchus attained sizes to rival its dinosaurian contemporaries, on which it undoubtedly preyed, has remained a mystery. Did it exhibit accelerated growth rates, like its dinosaurian cousins1, or did it simply maintain primitive reptilian rates for decades (as was once proposed to explain gigantism in dinosaurs2)? We find that growth indices from Deinosuchus skeletons reveal rates comparable to those of smaller crocodylian taxa, indicating that the gigantic proportions were attained by prolonging development.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
References
Ricqlès, A. de in ACold Look at the Warm-blooded Dinosaurs (eds Thomas, R. D. K. &Olson, E. C.) 103-139 (Westview, Boulder, Colorado, 1980).
Case, T. J. Paleobiology 4, 320–328 (1978).
Hutton, J. M. Copeia 1986, 332–341 (1986).
Castanet, J., Francillon-Vieillot, H., Meurnier, F. J. &Ricqlès, A. de in Bone Vol. 7 (ed. Hall, B. K.) 245-283 (CRC, Boca Raton, Florida, 1993).
Woodward, A. R., White, J. H. & Linda, S. B. J. Herpetol. 29, 507–513 (1995).
Greer, A. E. J. Herpetol. 8, 381–384 (1974).
Brochu, C. A. Phylogenetic Systematics and Taxonomy of Crocodylia. Thesis, Univ. Texas, Austin, 1997.
Grenard, S. Handbook of Alligators and Crocodiles (Krieger, Malabar, Florida, 1991).
Ricqlès, A. d, Horner, J. R. & Padian, K. J. Vert. Paleontol. Abstr. 18, 72 (1998).
Chabreck, R. H. & Joanen, T. Herpetologica 35, 51–57 (1979).
Webb, G. J. W. et al. Aust. Wildl. Res. 5, 385–399 (1978).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Erickson, G., Brochu, C. How the ‘terror crocodile’ grew so big. Nature 398, 205–206 (1999). https://doi.org/10.1038/18343
Issue Date:
DOI: https://doi.org/10.1038/18343
This article is cited by
-
Collagen Fibers in Crocodile Skin and Teeth: A Morphological Comparison Using Light and Scanning Electron Microscopy
Journal of Bionic Engineering (2020)
-
The multi-peak adaptive landscape of crocodylomorph body size evolution
BMC Evolutionary Biology (2019)
-
Polar and K/Pg nonavian dinosaurs were low-metabolic rate reptiles vulnerable to cold-induced extinction, rather than more survivable tachyenergetic bird relatives: comment on an obsolete hypothesis
International Journal of Earth Sciences (2017)
-
Crocodylian diversity peak and extinction in the late Cenozoic of the northern Neotropics
Nature Communications (2013)
-
The world’s largest gharialsGryposuchus: description ofG. croizati n. sp. (Crocodylia, Gavialidae) from the Upper Miocene Urumaco Formation, Venezuela
Paläontologische Zeitschrift (2008)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.