An artist's impression of a Tyrannosaurus Rex ... "It doesn't make sense to compare the body sizes of fossil species known from scanty remains. "There are some extinct species—mammoths, for ...

Scientists have raised concerns about the lack of Tyrannosaurus rex fossils for their research ... easily identifiable from its massive body, menacing jaws and sharp teeth. Touted as one of ...

Kumiko via Wikimedia Commons under CC BY-SA 2.0 Around 66 million years ago, the iconic and terrifying Tyrannosaurus ... size, body size variation and the incompleteness of the fossil record.

There's no denying that Tyrannosaurus rex was one of the biggest ... They also considered variations in body size based on sexual dimorphism — size differences between the sexes of animals ...

A study looks at the maximum possible sizes of dinosaurs, using the carnivore, Tyrannosaurus ... rex fossils probably fall in the 99th percentile, representing the top 1% of body size, but to ...

rexes," Lyson said. Having juvenile specimens helps reveal the Tyrannosaurus growth rate and body changes during maturation, Lyson said. Only a handful of such fossils are available for study.

Liam lay down next to the bone, which was more than half the length of his body ... The fossil could contribute to a heated scientific debate over whether there is a single Tyrannosaurus rex ...

A recent study published in the journal Palaeontologia Electronica raises concerns about the impact of private collectors on Tyrannosaurus rex fossil research. The study found that commercial ...

rexes," Lyson said. Having juvenile specimens helps reveal the Tyrannosaurus growth rate and body changes during maturation, Lyson said. Only a handful of such fossils are available for study.