#NEXUS [!This data set was downloaded from TreeBASE, a relational database of phylogenetic knowledge. TreeBASE has been supported by the NSF, Harvard University, Yale University, SDSC and UC Davis. Please do not remove this acknowledgment from the Nexus file. Generated on April 22, 2026; 15:40 GMT TreeBASE (cc) 1994-2008 Study reference: Farke A.A., Sampson S.D., Forster C.A., & Loewen M.A. 2010. Turanoceratops tardabilis—sister taxon, but not a ceratopsid. Naturwissenschaften, 96: 869-870. TreeBASE Study URI: http://purl.org/phylo/treebase/phylows/study/TB2:S13214] [ The following blocks are input data for analysis step 9899 ] BEGIN TAXA; TITLE TaxaForAnalysisStep9899; DIMENSIONS NTAX=16; TAXLABELS Achelousaurus Anchiceratops Arrhinoceratops Avaceratops Centrosaurus Chasmosaurus Diceratops Einiosaurus Pachyrhinosaurus Pentaceratops Protoceratops Styracosaurus Torosaurus Triceratops Turanoceratops Zuniceratops ; END; BEGIN CHARACTERS; [! TreeBASE Matrix URI: http://purl.org/phylo/treebase/phylows/matrix/TB2:M13982] TITLE Character_Matrix; LINK TAXA = TaxaForAnalysisStep9899; DIMENSIONS NCHAR=73; FORMAT DATATYPE=Standard SYMBOLS= "0 1 2" MISSING=? GAP= -; MATRIX [ 10 20 30 40 50 60 70 ] [ . . . . . . . ] Achelousaurus 01100??00?0?110120?11101??11110111111100111101000111111111111111011110111 Anchiceratops 11111101?0100101110110101?0121201000110011001000000111110111111??11111211 Arrhinoceratops 111111010?100101110110101?01?1?0100011001????0000001?111???1????????????? Avaceratops ?1100??00?0?11?????????????1????10101??????????????1?111?111111???1????11 Centrosaurus 01100??00?0?1101101110010111110111111100111101111101111111111111011110111 Chasmosaurus 11111011?01000111?01100?00?1111010001110010010010001111101111111111111211 Diceratops 1111100111110101110110101?01212010001101110?10000001?111???111??????????? Einiosaurus 01100??00?0?110110111001??11110111111100111101000111111111111111011110111 Pachyrhinosaurus 01100??00?0?110120?11101??11110111111100111101001111111111111111011110111 Pentaceratops 11111011?01000111?0110001?01?110100011100100100100011111011111111?1111211 Protoceratops 000?0???0?0?000000000????00000?00000000000?????????0000000000000000000000 Styracosaurus 01100??00?0?110110111001?111110111111100111101111111111111111111011110111 Torosaurus 1111100111??01011101101010012120100011011100100000011111011111??????????? Triceratops 1111100111110101110110101001212110001100111010000001111101111111111111211 Turanoceratops ???????????????10??0???0???????????????????????????0??110???????????????? Zuniceratops ????????????????????10000????????????????????????????????01000??????????? ; END; [ The following blocks are output data for analysis step 9899 ] BEGIN TREES; TITLE Analysis_results; LINK TAXA = TaxaForAnalysisStep9899; TREE Figure_1 = [&R] (Protoceratops,(Zuniceratops,Turanoceratops,((Avaceratops,(Einiosaurus,(Achelousaurus,Pachyrhinosaurus),(Centrosaurus,Styracosaurus))),(((Anchiceratops,Arrhinoceratops),(Triceratops,(Diceratops,Torosaurus))),(Chasmosaurus,Pentaceratops))))); [! TreeBASE tree URI: http://purl.org/phylo/treebase/phylows/tree/TB2:Tr55917] END;