Avaceratops, or the “Ava horned face”, lived during the Late Cretaceous Period, and is a genus of small ceratopsian dinosaur. They were found in what is now the Northwestern United States. It was first discovered in the Judith River Formation of Montana in 1981. The fossils were found scattered along the remains of a prehistoric stream bed. It is believed that the specimen was buried in the sandbar after its body was washed downstream by a current. Eddie Cole made the original find and the specimen got named formally, in 1986, by Peter Dodson. It was named after Ava, Eddie’s wife. The species name, A. lammersi, honors the Lammers family who owned the land where the fossil was found.

Not much is known about this specimen besides it being a ceratopsian dinosaur with a parrot-like beak. It was an herbivore. Flowering plants were geographically limited on the landscape during the Late Cretaceous Period, so it is believed that Avaceratops fed on the predominant plant species of the time: ferns, cycads and conifers. It used its sharp beak to strip leaves and needles from the branches.

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