| "You are a Spiketail, so we will call you 'Spike'." The subject(s) detailed in this article has/have been given a conjectural (and, as a result, unofficial) name, due to the lack of an official name for the article subject(s) to be referred to by. |
"Onehorn" is a fan-derived term for one-horned ceratopsians, specifically Styracosaurus. This term comes from the single, large nose-horn that these species possess.
Species
Styracosaurus