T-Rex Bite Marks on Hadrosaur Vertebrae, Hell Creek Formation

This fossil was collected by our team on private leased land in South Dakota. 

The fossil has absolutely no restoration or crack filling of any kind. 

This is evidence of dinosaur behavior where a Tyrannosaurus rex left its mark on its prey. The bite marks, on pictures 3 and 4, indicate the immense force of the predator’s jaws, which could crush bone with ease. These impressions suggest either an active hunt, where the T. rex subdued its prey with powerful bites, or scavenging, where it fed on an already-deceased animal. The positioning and depth of the marks provide valuable insight into feeding strategies, revealing how this apex predator interacted with its environment and shaped the Late Cretaceous ecosystem.

Measurements: 4.5” long x 4.0" wide x 3.0” thick 

We are passionate fossil collectors working on private leased land in the US. We aim to provide the highest quality fossils, specializing in dinosaur material. Our goal is to make high quality specimens accessible to a wide range of collectors and inspire people about the natural world.   

Please contact us with any questions.