If you want to get technical, by going via scientific nomenclature its actually Torosaurus that doesn't exist, being a mature form of Triceratops, since Triceratops was identified first. The media only says "Triceratops" doesn't exist because its the more popular dinosaur and gnerates more buzz.
Issue one and it's official: there's gonna be a stampade o' PAIN from the tricerabots hearin' that their beast mode's based on a "mini-torosaurus".