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meaning: "unknown crest"
Named By: T. A. Gates, Z. Jinnah, C. Levitt & M. A. Getty in 2014
Time Period: Late Cretaceous, 78 Ma
Location: USA, Utah - Wahweap Formation
Size: Unknown due to lack of fossil remains
Diet: Herbivore
Fossil(s): Maxilla (tooth baring bone of the upper jaw)
Classification: | Chordata | Reptilia | Dinosauria | Ornithishcia | Ornithopoda | Hadrosauridae | Lambeosaurinae |

Adelolophus ("unknown crest") is a genus of lambeosaurine hadrosaurid dinosaur (a crested "duck-bill") from Upper Cretaceous rocks in Utah, United States. It is based on University of California Museum of Paleontology specimen 152028, a maxilla (tooth-bearing bone of the upper jaw). This specimen was found in the Campanian-age Wahweap Formation within Grand Staircase-Escalante National Monument. Adelolophus was described by Terry Gates and colleagues in 2014. The type and only known species is A. hutchisoni; the species name is a reference to Dr. Howard Hutchison, who found the specimen. The authors interpreted Adelolophus as the oldest known lambeosaurine from North America, at approximately 78 million years old.

Read more about Adelolophus at Wikipedia
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