5.5" Hypacrosaurus Dinosaur Fossil Rib Bone Two Medicine FM Cretaceous MT COA

Description: 5.5" Hypacrosaurus Dinosaur Fossil Rib Bone Two Medicine FM Cretaceous MT COA Location: Two Medicine Formation, Montana (Private Land Origin) Weight: 7.6 Ounces (With Metal Stand) Dimensions: 5.5 Inches Long, 2.2 Inches Wide, 2 Inches Thick (With Metal Stand) Dimensions: 5.5 Inches Long, 1.9 Inches Wide, 0.5 Inches Thick Comes with a Certificate of Authenticity. Comes with a Custom Metal Stand. The item pictured is the one you will receive. This is a real fossil. Hypacrosaurus Dinosaur Hypacrosaurus means ‘near the highest lizard’, and in this context, the ‘lizard’ was actually the dinosaur Tyrannosaurus, one of the largest dinosaurs in the ecosystems of late Cretaceous North America, but only about a third larger than Hypacrosaurus in the largest individuals (twelve meters for large individual Tyrannosaurus compared to nine meters for Hypacrosaurus). Interestingly Hypacrosaurus and other dinosaurs like it may have actually been prey to Tyrannosaurus and other related genera such as Albertosaurus. Evidence for this comes from a huge bite wound inflicted on the back of an Edmontosaurus that closely matches the shape of a Tyrannosaurus mouth. Because the bones in the wound actually healed afterwards this proves that the Edmontosaurus in question was alive when it happened, and not a case of a tyrannosaur simply scavenging an existing carcass. When you compare this to the twenty or so eggs in each Hypacrosaurus nest, you get the conclusion that Hypacrosaurus were breeding at a rate to compensate for high mortality levels. Assuming that environmental conditions were not so much of a factor, this could be because Hypacrosaurus was a viable and common prey species of the time, and tyrannosaurs withstanding, other predators of Hypacrosaurus may have included troodontids like Troodon. These small predators would have been a particular threat to the smaller individuals of Hypacrosaurus, reducing the numbers growing to adulthood. The crest of Hypacrosaurus is similar to that of its relative Corythosaurus, though wider and not as high. This crest was also hollow which confirms its establishment as a lambeosaurine hadrosaurid (the group typified by Lambeosaurus). Several theories have been made about the function of lambeosaurine head crests, though the one with the most support concerns visual display so that different species of hadrosaur can tell each other apart, probably in a similar fashion to how the differences in the forms of horns and neck frills allow different genera of ceratopsian dinosaurs to be identified. Shipping Payments Terms of Sale Contact Us We offer combined discounted shipping on purchases made the same day. If your using PayPal payment we only ship to the shipping address specified on PayPal. Most orders are shipped with the United States Postal Services with tracking. All shipments will be shipped within 24 hours except Sundays Signatures are required on all purchases over $100 USD All payments must be made within 72 hours of placing your order. UNCONDITIONAL RETURN POLICY At Fossil Age Minerals, customer service and satisfaction are our highest priorities. Because your positive buying experience is very important to us, Fossil Age Minerals has an Unconditional return policy if: 1. All returns must be in their original state. 2. All return requests are made within 30 Calendar days of receipt of merchandise. You can contact us between the hour of 9:00AM - 8:00PM Central time Mon - Fri. We are closed on weekends and holidays.

Price: 175.99 USD

Location: Post Falls, Idaho

End Time: 2024-09-09T18:14:12.000Z

Shipping Cost: 4.99 USD