4.6" Maiasaura Hadrosaur Dinosaur Rib Bone Fossil Two Medicine FM Montana COA Acanthoceras forming the complex internal structure

forming the complex internal structure that becomes especially visible when the fossil is polished

making it instantly captivating

The use of sp

Yellow Calcite is a calcium carbonate mineral with a hardness of 3

4.6" Maiasaura Hadrosaur Dinosaur Rib Bone Fossil Two Medicine FM Montana COA Acanthoceras forming the complex internal structureLocation: Two Medicine Formation, Montana (Private Land Origin) Weight: 4. 6 Ounces Dimensions: 4. 6 Inches Long, 1. 6 Inches Wide, 0. 8 Inches Thick Comes with a Certificate of Authenticity The item pictured is the one you will receive. Cretaceous Age 83 70 Million Years Old. Name: Maiasaura Type: Herbivore Size: 9 meters in length. Maiasaura is a large hadrosaurid dinosaur from the Upper Cretaceous of North America, dated to approximately 6570