3.8" Maiasaura Hadrosaur Dinosaur Rib Bone Fossil Two Medicine FM Montana COA Amethyst Species within the genus Paralenorthis

Species within the genus Paralenorthis display characteristic features of rhynchonellid brachiopods

Measuring up to 12 meters in length and weighing roughly 7 tonnes

This crest was also hollow

A flexible jaw structure allowed for a wide gape

making it roughly comparable to an adult human in both size and mass

3.8" Maiasaura Hadrosaur Dinosaur Rib Bone Fossil Two Medicine FM Montana COA Amethyst Species within the genus ParalenorthisLocation: Two Medicine Formation, Montana (Private Land Origin) Weight: 3. 7 Ounces Dimensions: 3. 8 Inches Long, 1. 5 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 was a large herbivorous duck billed dinosaur from the Upper Cretaceous Period, around 65 to 70 million years