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Nanotyrannus

All articles tagged with #nanotyrannus

T. rex grew for four decades before reaching full size, study finds
science21 days ago

T. rex grew for four decades before reaching full size, study finds

A new study of 17 tyrannosaur fossils using enhanced bone imaging and advanced statistics reconstructs Tyrannosaurus rex's growth, showing it continued maturing for about 40 years to reach roughly eight tons—longer than previously believed. The work also highlights potential misclassifications within the T. rex species complex (including Nanotyrannus) and introduces a composite growth curve that improves life-history understanding for dinosaurs.

via ScienceDaily|
#growth-curve#growth-rings#nanotyrannus
Study rewrites T. rex growth: four-decade path to full size
science4 months ago

Study rewrites T. rex growth: four-decade path to full size

A broad analysis of 17 Tyrannosaurus rex specimens indicates the species continued growing for about 40 years, reaching roughly eight tons, with growth rings detected via new imaging methods and a composite growth curve that stitches data from multiple individuals. The findings suggest a longer life history than previously thought and raise questions about whether some well-known fossils belong to related species such as Nanotyrannus.

via ScienceDaily|
#bone-histology#growth-rings#nanotyrannus
T. rex grew to adulthood over four decades, new study finds
science5 months ago

T. rex grew to adulthood over four decades, new study finds

A large study of 17 tyrannosaur fossils using expanded histology and advanced statistics finds Tyrannosaurus rex reached its adult mass of about eight tons after roughly 40 years, slower and more variable than previously thought. The work uncovers previously overlooked growth rings, suggests a longer subadult phase, and raises questions about whether some specimens (including Jane and Petey) belong to a separate Nanotyrannus-like species, reshaping debates about tyrannosaur growth and diversity.

via SciTechDaily|
#growth-modeling#growth-rings#nanotyrannus
New study revises T. rex growth timeline, reached full size by 35–40 years
science6 months ago

New study revises T. rex growth timeline, reached full size by 35–40 years

A study of 17 Tyrannosaurus rex fossils using polarized light reveals growth rings showing they grew slowly, not reaching a maximum size of about 8 tons until about 35–40 years old. Growth rings capture only the last 10–20 years of life, but by combining data across ages researchers reconstructed year-by-year growth, finding more variability and suggesting possible taxonomic differences such as Nanotyrannus; the findings revise the dinosaur’s growth timeline and how it occupied various ecological niches.

via CNN|
#dinosaur-growth#growth-rings#nanotyrannus
"Nanotyrannus: Real Dinosaur or Young T. rex? The Significance of the Debate"
science2 years ago

"Nanotyrannus: Real Dinosaur or Young T. rex? The Significance of the Debate"

The debate over whether "Nanotyrannus lancensis" was a unique species or a young T. rex continues to stir controversy, with some arguing that the fossils attributed to "Nanotyrannus" are simply those of adolescent T. rex. Despite decades of debate and multiple studies, the consensus among tyrannosaur experts is that there's no solid case for "Nanotyrannus." The controversy has inflated the prices of tyrannosaur fossils at auctions, with a recent skeleton listed for sale at $20 million, reigniting the debate. However, the scientific community remains unconvinced, and the focus on "Nanotyrannus" is seen as a distraction from more meaningful paleontological research and conservation efforts.

via Slate|
#dinosaur#fossils#nanotyrannus