(Protoceratops,(Zuniceratops,((Avaceratops,((Einiosaurus,(Achelousaurus,Pachyrhinosaurus)),(Centrosaurus,Styracosaurus))),(Agujaceratops,(Chasmosaurus,(Pentaceratops,(Coahuilaceratops,(Anchiceratops,Arrhinoceratops,(Eotriceratops,(Triceratops,(Diceratops,Torosaurus)))))))))));