Complex sentence: The name "Medusaceratops" was coined by Canadian paleontologist Michael J. Ryan of the Cleveland Museum of Natural History in 2003 in a dissertation; these fossils were confused with those of "Albertaceratops", an unrelated centrosaurine ceratopsian from Alberta which had been described in 2007.
Split into simpler sentences: The name "Medusaceratops" was coined by Canadian paleontologist Michael J. Ryan of the Cleveland Museum of Natural History in 2003 in a dissertation. These fossils were confused with those of "Albertaceratops", an unrelated centrosaurine ceratopsian from Alberta which had been described in 2007.