6" Daspletosaurus Tyrannosaur Dinosaur Fossil Vertebrae Judith River FM MT COA
Location: Judith Formation, Montana (Private Land Origin)
Weight: 5 Pounds,15.4 Ounces (With Metal Stand)
Dimensions: 6 Inches Long, 5 Inches Wide, 4 Inches Thick (With Metal Stand)
Fossil Dimensions: 6 Inches Long, 5 Inches Wide, 3.5 Inches Thick
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The item pictured is the one you will receive.
Name: Daspletosaurus (Frightful lizard).
Classification: Theropoda, Tyrannosauria, Tyrannosauridae.
Type: Carnivore.
Size: 8-9 meters long
Known locations: Canada, Alberta, Judith River Group - USA, Montana, Judith River Formation.
Time period: Campanian of the Cretaceous.
Daspletosaurus is remarkably similar to Tyrannosaurus, with the main differences being a smaller but heavier build, shorter feet, and proportionally larger teeth. This has led some to conclude that Daspletosaurus was the ancestor of Tyrannosaurus, while others consider it to be a subspecies, although no definitive Tyrannosaurus remains have been found to date from the same time as Daspletosaurus.
Daspletosaurus challenges the notion of solitary hunting by hinting at social interactions and possible pack behavior. Two skulls show striking evidence of face bites—one from a juvenile whose wounds healed, proving these bites weren’t meant to kill. Face biting, seen in other fierce predators, can signal dominance, territorial battles, or even mating struggles. Or, daringly, these marks might be signs of a lurking parasitic infection rather than aggression. This glimpse into Daspletosaurus reveals a predator with complex and unexpected behaviors.
In Montana, the remains of three Daspletosaurus and five hadrosaurs have been found in a bone bed together. It’s unlikely that the bones had been washed together via a river flow, and some consider this evidence that Daspletosaurus may have formed packs. Of the three remains, one was an adult, another a juvenile, but the age of the third cannot be determined. However, this only really proves that three Daspletosaurus died in the same location.
