#NEXUS BEGIN DATA; DIMENSIONS NTAX=18 NCHAR=19; FORMAT SYMBOLS= " 0 1" MISSING=? GAP=- ; MATRIX Dipterus 0000000000000000000 Rhinodipterus 0000000000000000001 Scaumenacia 0000000000000000111 Phaneropleuron 0000000000000011011 Conchopoma 0000111111111101111 Delatitia 0000000000011101111 Ctenodus 0000000000101101111 Ganopristodus 0000000001111101111 Straitonia 0000111111111101111 Tranodis 0000000000000111111 Sagenodus 0000000111111101111 Megapleuron 0000000011111101111 Palaeophichthys 0001011111111101111 Gnathoriza 0011011111111101111 Paraceratodus 0100001111111101111 Ptychoceratodus 0011011111111101111 Neoceratodus 1100001111111101111 Lepidosiren 1100001111111101111 ; END; BEGIN ASSUMPTIONS; OPTIONS DEFTYPE=unord PolyTcount=MINSTEPS ; END;