Tyrannasaurus Rex Bone - Fossil 400 There are two grades

There are two grades

because thick ones wouldn't fly as far

Material:  Hard Pressed Felt

Size approximately: 17mm x 10mm x 11

Approximate Size of 1 piece:  40mm x 50mm x 50mmApproximate Weight of 1 piece: 90g

Tyrannasaurus Rex Bone - Fossil 400 There are two gradesMined from: Hell Creek Formation, South Dakota, USA Era: Cretaceous Geological Age: 66 68 mya Description: These are authentic Tyrannasaurus bone fragments. The Tyrannasaurus Rex was an apex predator that would prey on herbivores and other dinosaurs. Their head and teeth had evolved which gave them an extremely strong bite with nearly 8,000lbs of force. The Tyrannosaurus was one of the largest land carnivores of all time , being around 42 feet long