Jaxartosaurus
Jaxartosaurus is a genus of hadrosaurid dinosaur similar to Corythosaurus and possibly Hadrosaurus which lived during the Late Cretaceous. Its fossils were found in Kazakhstan.Description
Jaxartosaurus had a large, helmet-like crest that it may have used for visual identification and to call females, or to vocalize with members of the same herd. Their crest produced a trumpeting sound. They cropped low-lying plants with their toothless beak and chewed them with their cheek teeth. Their teeth had extensive wear and ridges.Taxonomy
The type species, J. aralensis, was first described by Anatoly Nikolaevich Riabinin in 1937. A second species, J. fuyunensis, was described by Wu for a dentary from Xinjiang, China, but is dubious.
