Uploaded September 2023 | Updated September 2026, 2 weeks ago
How big was T.rex? New data shows that the T.rex E.D. Cope, the "Copium rex," was the biggest theropod ever found, increasing theropod size limits to new heights. T.rex was a powerful predatory megatheropod. While Sue and Scotty are currently cited as the biggest T.rex specimens, new measurements of E.D. Cope, from the Black Hills Institute in South Dakota, form a challenge for the title of the megatheropod king. Measurements of this new T.rex femur indicate that Cope may be between 10.6 and 12.4 tonnes, making it the biggest theropod by up to 2 tonnes. T.rex size is a hot debate in paleontology, and Cope just turned it into a bonfire. Copium rex!
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Campione, N.E., Evans, D.C., Brown, C.M. and Carrano, M.T. (2014), Body mass estimation in non-avian bipeds using a theoretical conversion to quadruped stylopodial proportions. Methods Ecol Evol, 5: 913-923. doi.org/10.1111/2041-210X.12226
Carr, T.D., Napoli, J.G., Brusatte, S.L. et al. Insufficient Evidence for Multiple Species of Tyrannosaurus in the Latest Cretaceous of North America: A Comment on “The Tyrant Lizard King, Queen and Emperor: Multiple Lines of Morphological and Stratigraphic Evidence Support Subtle Evolution and Probable Speciation Within the North American Genus Tyrannosaurus”. Evol Biol 49, 327–341 (2022). doi.org/10.1007/s11692-022-09573-1
Hurlburt, Grant. (1999). Hurlburt, G. R. 1999. Comparison of body mass estimation techniques, using recent reptiles and the pelycosaur Edaphosaurus boanerges. Journal of Vertebrate Paleontology 19 (2):338-350.. Journal of Vertebrate Paleontology. 19. 338-350.
Paul, G.S., Persons, W.S. & Van Raalte, J. The Tyrant Lizard King, Queen and Emperor: Multiple Lines of Morphological and Stratigraphic Evidence Support Subtle Evolution and Probable Speciation Within the North American Genus Tyrannosaurus. Evol Biol 49, 156–179 (2022). doi.org/10.1007/s11692-022-09561-5
Persons, W.S., IV, Currie, P.J. and Erickson, G.M. (2020), An Older and Exceptionally Large Adult Specimen of Tyrannosaurus rex. Anat Rec, 303: 656-672. doi.org/10.1002/ar.24118
How big was T.rex? New data shows that the T.rex E.D. Cope, the "Copium rex," was the biggest theropod ever found, increasing theropod size limits to new heights. T.rex was a powerful predatory megatheropod. While Sue and Scotty are currently cited as the biggest T.rex specimens, new measurements of E.D. Cope, from the Black Hills Institute in South Dakota, form a challenge for the title of the megatheropod king. Measurements of this new T.rex femur indicate that Cope may be between 10.6 and 12.4 tonnes, making it the biggest theropod by up to 2 tonnes. T.rex size is a hot debate in paleontology, and Cope just turned it into a bonfire. Copium rex!
Check out the original Reddit conversation here: reddit.com/r/Dinosaurs/comments/15y0wu4/what_makes_me_feel_strange_is_that_no_one_here
Join The Vividen Discord Server: discord.gg/ecTk3wK8pt
Fair Use permits usage of third-party copyrighted content for educational and research purposes.
Join this channel to get access to perks:
youtube.com/channel/UCmkkmzfWWf4HzrO8SGO3gjw/join
Atlantis by Audionautix is licensed under a Creative Commons Attribution 4.0 license. creativecommons.org/licenses/by/4.0
Campione, N.E., Evans, D.C., Brown, C.M. and Carrano, M.T. (2014), Body mass estimation in non-avian bipeds using a theoretical conversion to quadruped stylopodial proportions. Methods Ecol Evol, 5: 913-923. doi.org/10.1111/2041-210X.12226
Carr, T.D., Napoli, J.G., Brusatte, S.L. et al. Insufficient Evidence for Multiple Species of Tyrannosaurus in the Latest Cretaceous of North America: A Comment on “The Tyrant Lizard King, Queen and Emperor: Multiple Lines of Morphological and Stratigraphic Evidence Support Subtle Evolution and Probable Speciation Within the North American Genus Tyrannosaurus”. Evol Biol 49, 327–341 (2022). doi.org/10.1007/s11692-022-09573-1
Hurlburt, Grant. (1999). Hurlburt, G. R. 1999. Comparison of body mass estimation techniques, using recent reptiles and the pelycosaur Edaphosaurus boanerges. Journal of Vertebrate Paleontology 19 (2):338-350.. Journal of Vertebrate Paleontology. 19. 338-350.
Paul, G.S., Persons, W.S. & Van Raalte, J. The Tyrant Lizard King, Queen and Emperor: Multiple Lines of Morphological and Stratigraphic Evidence Support Subtle Evolution and Probable Speciation Within the North American Genus Tyrannosaurus. Evol Biol 49, 156–179 (2022). doi.org/10.1007/s11692-022-09561-5
Persons, W.S., IV, Currie, P.J. and Erickson, G.M. (2020), An Older and Exceptionally Large Adult Specimen of Tyrannosaurus rex. Anat Rec, 303: 656-672. doi.org/10.1002/ar.24118
