[CLSTR]
< Back to situations

Monitor this situation.

[SITUATION] · [ACTIVE] · [CULTURE]

2 clusters · 2 sources · 17 days · First seen · Last updated

Tyrannosaurus rex juvenile development research

Overview

Research published in the journal Biology indicates that newborn Tyrannosaurus rex specimens were significantly smaller than previously understood, with sizes comparable to domestic cats.

Initial findings from a study involving a juvenile skeleton found in Wyoming’s Lance Formation utilized synchrotron computed tomography to reveal rapid bone growth and predatory adaptations in hatchlings.

Subsequent analysis of a metatarsal bone from the Frenchman Formation in Saskatchewan, Canada, provided further detail. Researchers estimated that a T. rex specimen weighed approximately 2.5 kilograms at death, with a hatching weight of roughly 1.6 kilograms. These fossils, which include relatives such as Gorgosaurus libratus, suggest that even at this early stage, the young dinosaurs possessed functional teeth and long legs, potentially allowing them to hunt shortly after hatching.

Entities

Tyrannosaurus rex · Biology (journal) · Wyoming · Lance Formation · Royal Saskatchewan Museum

Timeline

  1. 1 day ago

    [CULTURE] 2 sources
    T. rex fossils reveal newborn dinosaurs were cat-sized

    Paleontologists have discovered the first fossils of a newborn T. rex, revealing the dinosaur weighed only about 1.6 to 2.5 kilograms at a young age and possessed functional teeth and long legs.

  2. 18 days ago

    [INTERNATIONAL] 2 sources
    Tyrannosaurus Rex Hatchlings Revealed as Size of House Cats in New Study

    New research shows Tyrannosaurus rex hatchlings were cat‑sized yet already predatory, based on a Wyoming fossil analyzed with synchrotron tomography.

Sources

greenme.it · nextme.it