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Parasaurolophus, a crested hadrosaur.. Hadrosaurids, also commonly referred to as duck-billed dinosaurs or hadrosaurs, were large terrestrial herbivores.The diet of hadrosaurid dinosaurs remains a subject of debate among paleontologists, especially regarding whether hadrosaurids were grazers who fed on vegetation close to the ground, or browsers who ate higher-growing leaves and twigs.
Parasaurolophus (/ ˌ p ær ə s ɔː ˈ r ɒ l ə f ə s,-ˌ s ɔːr ə ˈ l oʊ f ə s /; meaning "beside crested lizard" in reference to Saurolophus) [2] is a genus of hadrosaurid "duck-billed" dinosaur that lived in what is now western North America and possibly Asia during the Late Cretaceous period, about 76.9–73.5 million years ago. [3]
The ornithopod family, which includes genera such as Edmontosaurus and Parasaurolophus, was a common group of herbivores during the Late Cretaceous Period. [1] Hadrosaurids are descendants of the Late Jurassic / Early Cretaceous iguanodontian dinosaurs and had a similar body layout.
Saurolophus was an important early reference for other hadrosaurs, as seen in the names of Prosaurolophus ("before Saurolophus") and Parasaurolophus ("near Saurolophus"). However, little additional material has been recovered and described. Instead, more abundant remains from Asia have provided more data.
Potentially a close relative of Parasaurolophus [5] Agujaceratops: 2006 Aguja Formation (Late Cretaceous, Campanian) United States ( Texas) The type species was originally assigned to the genus Chasmosaurus: Ahshislepelta: 2011 Kirtland Formation (Late Cretaceous, Campanian) United States ( New Mexico)
Parasaurolophus is a genus of dinosaur that lived in what is now North America during the Late Cretaceous Period, about 75 million years ago.A member of the Hadrosaurid or duck-billed dinosaurs, it was a plant-eater that walked on two legs or all four.
Images Adam [11] [12] Museum of Evolution: Torosaurus: Late Cretaceous: Has largest known skull for a dinosaur and land-living animal Afternoon Delight MOR 2569 [13] Museum of the Rockies: Triceratops: Late Cretaceous (Maastrichtian, 68-66 million years ago) Hell Creek formation: Amalie [14] [15] Natural History Museum, Berlin: Triceratops
Topographic map of Texas. This is a list of mammals of Texas. Mammals native to or immediately off the coast of the U.S. state of Texas are listed first. Introduced mammals, whether intentional or unintentional, are listed separately. The varying geography of Texas, the second largest state, provides a large variety of habitats for mammals.