5.1" Maiasaura Hadrosaur Dinosaur Rib Bone In Matrix Fossil Two Medicine FM MT COA Tourmaline This final extinction was likely

This final extinction was likely triggered by a massive asteroid impact

are often closed by centrally perforated lids in well-preserved specimens

Yet early Eocene brontotheres began as dog-sized animals

supported standing and movement

5.1" Maiasaura Hadrosaur Dinosaur Rib Bone In Matrix Fossil Two Medicine FM MT COA Tourmaline This final extinction was likelyLocation: Two Medicine Formation, Montana (Private Land Origin) Weight: 8 Pounds 2. 9 Ounces (Matrix) Dimensions: 11. 5 Inches Long, 9. 5 Inches Wide, 2 Inches Thick (Matrix) Rib Dimensions: 5. 1 Inches Long,1. 3 Inches Wide, 9 Inches Thick Comes with a Certificate of Authenticity Comes with a Free Stand. 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.