#NEXUS BEGIN DATA; DIMENSIONS NTAX=20 NCHAR=14 ; FORMAT DATATYPE=STANDARD SYMBOLS=" 0 1" MISSING=? GAP=- ; MATRIX Psittacosaurus 00000000000000 Yinlong 10000000000000 Wannanosaurus 11000000000000 Goyocephale 11110000000000 Homalocephale 11111000000000 Tylocephale_gilmorei 11111100000000 Prenocephale_prenes 11111111100000 Foraminocephale_brevis 11111100100000 Hanssuesia_sternbergi 11010000010000 Colepiocephale_lambei 11010000010000 Stegoceras_validum 11010000010000 Dracorex_hogwartsia 11111111101110 Stygimoloch_spinifer 11111111101110 Pachycephalosaurus 11111111100110 Alaskacephale_gongloffi 11111111100110 Sphaerotholus_goodwini 11111111100011 Sphaerotholus_buchholtzae 11111111100011 Acrotholus_audeti 11111111100000 Stegoceras_novomexicanum 11010000010000 Amtocephale_gobienses 11111101100000 ; END; BEGIN ASSUMPTIONS; OPTIONS DEFTYPE=unord PolyTcount=MINSTEPS ; END;