US EditionStudy finds Tyrannosaurus rex did not reach full size until age 40
Reanalysis of 17 fossils shows T. rex grew to about eight tons over 40 years, 15 years longer than prior estimates, impacting views on dinosaur lifespan and ecology.
- On Wednesday, Holly Woodward's PeerJ analysis showed Tyrannosaurus rex needed about 40 years to reach full size, based on the largest growth dataset for the species.
- Because single-bone preservation limits mean only the final 10 to 20 years are available, the team used statistical nesting and cross-polarized light to reexamine leg bones, revealing overlooked growth rings.
- Analysts measured bone tissue microstructure and counted rings in thigh and shin bones using cross-polarized light, revealing adult T. rex typically reached at least 8.8 tons.
87 Articles
87 Articles
It is the most famous dinosaur thanks to cinema and television, but new things about Tyrannosaurus rex, better known as T-Rex, are still known. A group of researchers have discovered news about the development and maturity of this species, which populated the Earth almost 70 million years ago.The study, carried out by three American researchers, reveals that T-Rex did not reach its full adult size until around 40 years old, gradually and steadil…
Tyrannosaurus rex took a long time to reach full maturity. It only reached its largest size at the age of 40. Much later in life than previously thought.
A new analysis suggests that the dinosaur grew surprisingly slowly, which calls into question previous assumptions.
At every step of a T. rex the ground trembled - at least when it was fully grown. Until then, however, it probably took a surprisingly long time. This, in turn, also had its advantages.
At every step of a T. rex the ground trembled - at least when it was fully grown. Until then, however, it probably took a surprisingly long time. This, in turn, also had its advantages.
The Tiranosaur rex, one of the largest carnivorous dinosaurs that existed, reached its maximum size much later than thought.A scientific study found that this reptile reached its final weight and dimensions between 35 and 40 years of age, which implies prolonged and sustained growth for several decades.The research was led by Oklahoma State University and published on January 14 in the PeerJ scientific journal.The results suggest that this patte…
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