#NEXUS BEGIN DATA; DIMENSIONS NTAX=7 NCHAR=5; FORMAT SYMBOLS= " 0 1" MISSING=? GAP=- ; MATRIX Primitive 00000 Hapsidopareion 00001 Trematopsidae 00011 Dissorophidae 00111 Anura 01111 Caudata 11111 Gymnophiona 11111 ; END; BEGIN ASSUMPTIONS; OPTIONS DEFTYPE=unord PolyTcount=MINSTEPS ; END;