👉 Echinodontium is a type of extinct, arthropod dinosaur that lived during the Late Cretaceous period, approximately 69 million years ago. It was characterized by its large, elongated bones and unique skull shape, which included a prominent jawbone with a triangular notch for opening and closing the mouth. Echinodontians were known to have a wide range of abilities, including climbing trees and using their sharp teeth to crush prey and extract food from underground.
