Uploaded November 2025 | Updated September 2026, 2 weeks ago
Cretaceous Russia was home to a megatheropod that may have rivaled the biggest ever discovered. "Reznyadrakon," or the Carnage Dragon, was a tyrannosaurine closely related to Tyrannosaurus, Zhuchengtyrannus, and Tarbosaurus that lived in the Udurchukan Formation of Maastrichtian Russia. Known from several fragmentary specimens, it approached or matched Tyrannosaurus rex in body size and hunted hadrosaurs and sauropods. This huge Russian tyrannosaur changes our understanding of Late Cretaceous terrestrial ecosystems in northern Asia and demonstrates that gigantic tyrannosaurines may have been more common than previously thought.
Thanks to my father-in-law for helping me come up with "Reznyadrakon"!
Thumbnail art by Curtis Lanaghan and Mark Witton
Drums of the Deep by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. creativecommons.org/licenses/by/4.0
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Cretaceous Russia was home to a megatheropod that may have rivaled the biggest ever discovered. "Reznyadrakon," or the Carnage Dragon, was a tyrannosaurine closely related to Tyrannosaurus, Zhuchengtyrannus, and Tarbosaurus that lived in the Udurchukan Formation of Maastrichtian Russia. Known from several fragmentary specimens, it approached or matched Tyrannosaurus rex in body size and hunted hadrosaurs and sauropods. This huge Russian tyrannosaur changes our understanding of Late Cretaceous terrestrial ecosystems in northern Asia and demonstrates that gigantic tyrannosaurines may have been more common than previously thought.
Thanks to my father-in-law for helping me come up with "Reznyadrakon"!
Thumbnail art by Curtis Lanaghan and Mark Witton
Drums of the Deep by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. creativecommons.org/licenses/by/4.0
Join this channel to get access to perks:
youtube.com/channel/UCmkkmzfWWf4HzrO8SGO3gjw/join
![Paleontology News: Dinosaurs Sounded Like Birds! Advanced Dinosaur Larynx Discovered
A specimen of Pinacosaurus has revolutionized the way paleontologists think about how dinosaurs sounded and communicated. 3-D laser scanning revealed a complex, advanced larynx inside of the ankylosaurs hyobranchial apparatus, revealing that they were likely able to produce birdlike sounds. Since ankylosaurs are so distantly related to birds, this may mean that other dinosaurs, like T.rex and Spinosaurus, were able to do the same. This study lends credence to the idea that some dinosaurs were able to develop biological culture, as complex communication strategies would make it easier for individuals to cooperate and develop mutually-beneficial intraspecific relationships.
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Dhiman H, Verma V, Singh LR, Miglani V, Jha DK, Sanyal P, et al. (2023) New Late Cretaceous titanosaur sauropod dinosaur egg clutches from lower Narmada valley, India: Palaeobiology and taphonomy. PLoS ONE 18(1): e0278242. https://doi.org/10.1371/journal.pone.0278242
Herculano-Houzel, S. (2022). Theropod dinosaurs had primate-like numbers of telencephalic neurons. Journal of Comparative Neurology, 00, 1– 13. https://doi.org/10.1002/cne.25453
Maidment SCR, Linton DH, Upchurch P, Barrett PM (2012) Limb-Bone Scaling Indicates Diverse Stance and Gait in Quadrupedal Ornithischian
Dinosaurs. PLoS ONE 7(5): e36904. doi:10.1371/journal.pone.0036904
Yoshida, J., Kobayashi, Y. & Norell, M.A. An ankylosaur larynx provides insights for bird-like vocalization in non-avian dinosaurs. Commun Biol 6, 152 (2023). https://doi.org/10.1038/s42003-023-04513-x
(7) (PDF) Limb-Bone Scaling Indicates Diverse Stance and Gait in Quadrupedal Ornithischian Dinosaurs. Available from: https://www.researchgate.net/publication/225187224_Limb-Bone_Scaling_Indicates_Diverse_Stance_and_Gait_in_Quadrupedal_Ornithischian_Dinosaurs [accessed Feb 15 2023]. Paleontology News: Dinosaurs Sounded Like Birds! Advanced Dinosaur Larynx Discovered](https://i.ytimg.com/vi/RmgjJpyXdyk/mqdefault.jpg)









