page_title: Augustynolophus
section_title: History of discovery
hierarchical_section_title: Augustynolophus / History of discovery
caption_attribution_description: Appendicular elements of a hadrosaurid dinosaur Augustynolophus (formerly Saurolophus) morrisi. (LACM/CIT 2760, a subadult), lower Maastrichtian Moreno Forma− tion of Panoche Hills, Fresno County, California, USA. A. Partial left scapula and coracoid in lateral view. B. Partially articulated forelimb elements. C. Proximal segment of right tibia in lateral view. D. Distal fragments of femora. E. Right metatarsal III in dorsal view.
context_page_description: Augustynolophus is an extinct genus of herbivorous saurolophine hadrosaur dinosaur which was discovered in the Moreno Formation in California, dating to the late Maastrichtian age, making it one of the last dinosaurs known from the fossil record before the Cretaceous–Paleogene extinction event.
context_section_description: The generic name derives from a combination of the Augustyn family, who helped support the Los Angeles County Museum, and the suffix "-lophus," referring to its relation to Saurolophus. The specific name refers to palaeontologist William Morris. It was originally described as a species of Saurolophus, S. morrisi. However, when a more in-depth study took place, the end results revealed that its cranial structure was vastly different when it was juxtaposed with the other known members of the tribe Saurolophini, most notably Saurolophus osborni and Saurolophus angustirostris and Prosaurolophus maximus and therefore, it was determined to be a separate genus. 
  All known specimens of Augustynolophus have been found only in California, which was a part of Laramidia, arguably one of the best known locations for dinosaur fossils. There are currently two known specimens of Augustynolophus. The holotype, LACM/CIT 2852, was unearthed in 1943. It consisted of the majority of the skull (including the dentary and predentary), vertebrae, and bones of the limb and hand. The second specimen was designated LACM/CIT 2760. Discovered in 1939, it was made up of elements of the skull and limbs. Due to its smaller size, it may have been a juvenile. It is one of three known dinosaurs from western coast of the United States, the other two being the Campanian Aletopelta coombsi and an undescribed species of tyrannosaur from Washington state. However, indeterminate hadrosaur remains have been found throughout California and similar areas.
  In September 2017, Augustynolophus was declared the official state dinosaur of California.
caption: Pectoral and limb elements
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