Leptoceratops_gracilisProtoceratops_andrewsiZuniceratops_christopheriTuranoceratops_tardarbilisAlbertaceratops_nesmoiCentrosaurus_apertusPachyrhinosaurus_lakustaiKosmoceratops_richardsoniAgujaceratops_mariscalensisUtahceratops_gettyiPentaceratops_sternbergiiCoahuilaceratops_magnacuernaAnchiceratops_ornatusArrhinoceratops_brachyopsOjoceratops_fowleriTorosaurus_latusTorosaurus_utahensisEotriceratops_xerinsularisNedoceratops_hatcheriTriceratops_horridusTriceratops_prorsusAMNH_5401AMNH_5402AMNH_5656CMN_0491CMN_1254CMN_2245CMN_2280CMN_8800CMN_41357NHMUK_R4948ROM_839ROM_843TMP_81_dot_19_dot_175TMP_83_dot_25_dot_1TMP_87_dot_45_dot_1UALVP_40YPM_2016Judiceratops_tigrisBravoceratops_polyphenmusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Campbell_etal_2016aa