Uploaded October 2025 | Updated September 2026, 2 weeks ago
The Dueling Dinosaurs, held at the North Carolina Museum of Natural Sciences, is a historic find that was finally described in October 2025. The block preserved a young Triceratops found articulated with a tyrannosaur--frequently cited as a juvenile Tyrannosaurus. Well, not anymore! With the description of the Dueling Dinosaurs, including an in-depth analysis of the 100% complete tyrannosaur, we now know beyond a reasonable doubt that this animal was not a T. rex. It’s a Nanotyrannus lancensis, and its existence completely changes our understanding of the ecology of Late Cretaceous North America.
Check out @skeletoncrew8122 's video here: youtube.com/watch?v=Y5EB6zcrCOU&t=71s
Thumbnail art by Anthony Hutchings
Drums of the Deep by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. creativecommons.org/licenses/by/4.0
REFERENCES
Nanotyrannus description paper https://doc.rero.ch/record/14603/files/PAL_E2288.pdf
Zanno, L. E. et al. Nanotyrannus and Tyrannosaurus coexisted at the close of the Cretaceous. Nature doi.org/10.1038/s41586-025-09801-6 (2025)
Napoli’s 2024 preprint on the ontogeny issue in vertebrates biorxiv.org/content/10.1101/2024.10.25.620216v1
Jane and Petey still had growth to do https://www.sci.news/paleontology/juvenile-tyrannosaurus-rex-07975.html
Moros intrepidus description paper pmc.ncbi.nlm.nih.gov/articles/PMC6385174
Jane running speed biorxiv.org/content/10.1101/2024.06.13.596099v1
Jane bite force pmc.ncbi.nlm.nih.gov/articles/PMC8179241
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youtube.com/channel/UCmkkmzfWWf4HzrO8SGO3gjw/join
The Dueling Dinosaurs, held at the North Carolina Museum of Natural Sciences, is a historic find that was finally described in October 2025. The block preserved a young Triceratops found articulated with a tyrannosaur--frequently cited as a juvenile Tyrannosaurus. Well, not anymore! With the description of the Dueling Dinosaurs, including an in-depth analysis of the 100% complete tyrannosaur, we now know beyond a reasonable doubt that this animal was not a T. rex. It’s a Nanotyrannus lancensis, and its existence completely changes our understanding of the ecology of Late Cretaceous North America.
Check out @skeletoncrew8122 's video here: youtube.com/watch?v=Y5EB6zcrCOU&t=71s
Thumbnail art by Anthony Hutchings
Drums of the Deep by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. creativecommons.org/licenses/by/4.0
REFERENCES
Nanotyrannus description paper https://doc.rero.ch/record/14603/files/PAL_E2288.pdf
Zanno, L. E. et al. Nanotyrannus and Tyrannosaurus coexisted at the close of the Cretaceous. Nature doi.org/10.1038/s41586-025-09801-6 (2025)
Napoli’s 2024 preprint on the ontogeny issue in vertebrates biorxiv.org/content/10.1101/2024.10.25.620216v1
Jane and Petey still had growth to do https://www.sci.news/paleontology/juvenile-tyrannosaurus-rex-07975.html
Moros intrepidus description paper pmc.ncbi.nlm.nih.gov/articles/PMC6385174
Jane running speed biorxiv.org/content/10.1101/2024.06.13.596099v1
Jane bite force pmc.ncbi.nlm.nih.gov/articles/PMC8179241
Join this channel to get access to perks:
youtube.com/channel/UCmkkmzfWWf4HzrO8SGO3gjw/join
