#NEXUS BEGIN DATA; DIMENSIONS NTAX=19 NCHAR=23 ; FORMAT DATATYPE=STANDARD SYMBOLS=" 0 1" MISSING=? GAP=- ; MATRIX Outgroup 00000000000000000000000 Heliobans 11111000000000000000010 Asteronygon 11111100000000001111010 Hexatrygon 00001000000000000000000 Plesiobatis 01111000000000000000000 Urolophus 00111010000000000000000 Trygonoptera 00111010000000000000000 Urobatis 11111101100000000000001 Urotrygmt 11111101100000000000001 Paranygon 11111100111000011111010 Potamotrygon 11111100111100011111010 Plesionygon 11111100111100011111010 Himantura 11111100101010010111111 Taeniura 11111100101010010011111 Hiniantura 11111100101001000001111 Pteroplalynygon 11111100101001000001111 Dasyatis 11111100101001000001111 Gymnuridae 00011000000000100000000 Myliobatidae 00011000000000100000000 ; END; BEGIN ASSUMPTIONS; OPTIONS DEFTYPE=unord PolyTcount=MINSTEPS ; END;