Description
Location: Lance Creek Formation, East Wyoming (Private Land Origin)
Weight: 4.1 Ounces
Dimensions: 3.3 Inches Long, 2 Inches Wide, 1.4 Inches Thick
Comes with a Certificate of Authenticity.
The item pictured is the one you will receive.
Cretaceous Age 83.6 - 70.6 million years old.
Most likely an Edmontosaurus rib bone.
Name: Hadrosaurus
Type: Herbivore
Size: 7 to 8 meters in length
Hadrosaurus was a genus of hadrosaurid ornithopod dinosaur that lived in North America during the Late Cretaceous period, approximately 80 to 78 million years ago. As one of the earliest recognized duck-billed dinosaurs, Hadrosaurus played an important role in understanding the evolution of herbivorous dinosaur groups. Adults are estimated to have weighed between 2 and 4 tons, making them medium-to-large plant-eaters within their ecosystems.
This dinosaur was primarily quadrupedal, relying on strong hind limbs to support most of its body weight while moving. However, Hadrosaurus could also rear up on its back legs to reach higher vegetation and may have run bipedally when escaping predators. The forelimbs, while slimmer than the hind limbs, were long enough to assist in locomotion and feeding behavior.
A defining feature of Hadrosaurus was its extremely advanced dental system, which contained up to 1,400 teeth arranged in complex dental batteries. These teeth allowed efficient processing of tough plant material, a hallmark adaptation among hadrosaurid dinosaurs. Although its exact skull shape remains uncertain, it likely resembled contemporaries such as Kritosaurus or later hadrosaurids like Edmontosaurus, reflecting evolutionary continuity within duck-billed dinosaurs.
