#NEXUS BEGIN DATA; DIMENSIONS NTAX=7 NCHAR=6; FORMAT SYMBOLS= " 0 1" MISSING=? GAP=- ; MATRIX Actinopterygii 000000 Actinistia 000011 Amniota 111111 Anura 111111 Caudata 001111 Dipnoi 000101 Apoda 011111 ; END; BEGIN ASSUMPTIONS; OPTIONS DEFTYPE=unord PolyTcount=MINSTEPS ; END;