T. rex Tooth Marks Found on Fossil Bones from Wyoming

Fossilized dinosaur bones discovered in Wyoming have shed new light on the feeding habits of ancient predators, with a recent study revealing evidence of bites made by one of the most iconic dinosaurs - the Tyrannosaurus rex. According to a study published in the journal PLOS One on July 15, 2026, researchers from Loma Linda University, led by Bethania C. T. Siviero, analyzed a collection of fossilized dinosaur bones that featured distinctive tooth marks. These marks, which were found on the remains of hadrosaurs and ceratopsians, were identified as being consistent with the characteristic bite patterns of the Tyrannosaurus rex.

The study's findings provide valuable insights into the behavior and ecology of these ancient predators, and suggest that the Tyrannosaurus rex was an apex hunter that played a significant role in shaping the ecosystems of the Late Cretaceous period. The researchers used advanced computer simulations and comparative analysis to match the tooth marks on the fossilized bones with those of known Tyrannosaurus rex specimens. The results of this study offer a new perspective on the feeding habits of the Tyrannosaurus rex and highlight the importance of continued research into the natural history of these fascinating creatures.

The discovery of Tyrannosaurus rex bite marks on the fossilized bones from Wyoming is a significant contribution to the field of paleontology, and has important implications for our understanding of the evolution and behavior of these ancient predators. As researchers continue to explore the fossil record and uncover new evidence, our knowledge of the natural world is expanded, and the mysteries of the ancient past continue to unfold.