9.2" Tyrannosaur Fossil Rib Bone Cretaceous Dinosaur Two Medicine FM MT COA Stand
Location: Two Medicine Formation, Montana (Private Land Origin)
Weight: 15.5 Ounces (With Metal Stand)
Dimensions: 9.2 Inches Long, 3 Inches Wide, 2.9 Inches Thick (With Metal Stand)
Fossil Dimensions: 9.2 Inches Long, 3 Inches Wide, 2.9 Inches Thick
Comes with a Custom Metal Stand.
Comes with a Certificate of Authenticity.
The item pictured is the one you will receive.
Most likely an excellent Gorgosaurus Rib Bone.
Albertosaurus, Gorgosaurus, and Daspletosaurus
Tyrannosaurs from the Late Cretaceous in northern North America include Albertosaurus, Daspletosaurus, and Gorgosaurus. Fossils are found in the Judith River in Montana and Alberta formations. As early relatives of Tyrannosaurus rex, which appeared at the end of the Cretaceous, these tyrannosaurs are all smaller than T. rex. Daspletosaurus and Gorgosaurus were similar in size and coexisted during the same period, each about 30 feet long and weighing up to 5000 lbs. Albertosaurus also reached about 30 feet in length but was lighter, with a maximum weight of 4000 pounds. It seems to have evolved slightly later than its two Judith River relatives.
