Eurygnathus

Eurygnathus is a genus of large, long-necked, herbivorous sauropod dinosaur that lived during the Late Jurassic period, approximately 155 to 150 million years ago. The name Eurygnathus translates to "broad-jawed," referring to the wide, flat snout of the animal. Fossils of Eurygnathus have been found in North America, particularly in the Morrison Formation of Colorado and Utah.

Eurygnathus is known for its distinctive features, including its long neck, small head, and broad, flat snout. The snout was likely used for grazing on low-growing vegetation. The dinosaur had a long tail, which may have been used for balance and support while the animal was moving. Eurygnathus is estimated to have been around 20 meters (66 feet) in length and weighed approximately 15 tons.

The genus Eurygnathus includes several species, with Eurygnathus longimanus being the most well-known. This species is characterized by its long, slender neck and small head. Other species, such as Eurygnathus campbelli and Eurygnathus robustus, have been described based on differences in skull morphology and other skeletal features.

Eurygnathus is an important dinosaur genus that provides valuable insights into the evolution of sauropod dinosaurs. Its unique features and the diversity of species within the genus contribute to our understanding of the adaptations and diversity of these large, herbivorous dinosaurs.