XL 4.7" Edmontosaurus Fossil Rib Bone Lance Creek WY Cretaceous Dinosaur COA
Location: Lance Creek Formation, Wyoming (Private Land Origin)
Weight: 5.1 Ounces
Dimensions: 4.7 Inches Long, 1.7 Inches Wide, 0.7 Inches Thick
Comes with a Certificate of Authenticity.
The item pictured is the one you will receive.
This is a genuine fossil bone.
Edmontosaurus, which means "lizard from Edmonton," was a species of hadrosaurid dinosaur that lived during the Maastrichtian, the final stage of the Cretaceous period, around 71 to 65 million years ago. Adult Edmontosaurus could grow up to nine meters long, with some of the larger ones reaching as much as thirteen meters. Weighing about 3.5 tonnes, it was among the largest hadrosaurids, showcasing its impressive size and presence.
Edmontosaurus could pass the toughest foodstuffs back and forth across the teeth with its muscular, daring pouches.
To fit so many teeth into its mouth, they were packed into tight "banks" of up to sixty rows, and new teeth continually grew to replace lost teeth — analogous to a new shark. The bones of the higher jaw would flex outwards as the lower jaw came up, so the mandible could grind against it. Typical food would have built-in conifer needles, seeds, and twigs, and these have been established in the body cavities of fossilized Edmontosaurus. It was evidently a tree-browser.
The 1908 discovery in Wyoming was particularly remarkable in that paleontologists actually recovered fossilized imprints of Edmontosaurus' skin. The skin drying very quickly and fixing its shape into the mud must have left an impression. It is from these limitations that we know the skin was scaly and leathery, and the thigh muscle was under the skin of the body. This would have given the feeling that the leg left its body at the knee, and the whole thigh was under the skin. This only contributes to its resemblance to a duck. It also had several tubercles (bumps) on its neck and down its back and tail.
Edmontosaurus was primarily bipedal but was also capable of walking on all fours. Its forelimbs were shorter than its hindlimbs, yet still strong enough to support four-legged movement. The front feet had hooves on two fingers and weight-bearing pads similar to those of Camarasaurus, while the back feet featured two hooked toes. The lower limbs were connected to powerful muscles, indicating strong support. With a downward-curving spine at the shoulders, Edmontosaurus maintained a low posture, feeding close to the ground. Although its limbs were strong, it was likely slow and lacked many defensive traits, relying instead on sharp eyesight, hearing, and smell to detect predators early and stay safe.
