Nexus
BEGIN DATA;
DIMENSIONS NTAX=21 NCHAR=31;
FORMAT SYMBOLS="01" MISSING=X;
MATRIX
	ARCHAEOPTERIS	100X0X0XX000X00XXX01X0XXX00000X
	MEDULLOSANS	011111100100X00X0000X0XXX00000X
	CYCADS		111111000100X10X0000X0XXX00000X
	LYGINOPTERIS	111100100100X00X0001X0X0X00000X
	CORDAIXYLON	11111011100111110000X0XXX00000X
	MESOXYLON	11111011100110110000X0XXX00000X
	LEBACHIA	11111011101110000000X0XXX00000X
	EXTANTCONIFERS	11111011101111001000X0XXX00000X
	GINKGO		111110101001X10X0000X0XXX00000X
	CALLISTOPHYTON	111110111100X10X1000X0XXX00000X
	PELTASPERMS	111110101100X10X0000X000X00000X
	GLOSSOPTERIDS	111110111100X10X01000000X00000X
	CAYTONIA	111110111100X10X01100000X00000X
	CORYSTOSPERMS	111110111100X10X01111000X00000X
	BENNETITALES	111110101100X10X011111111000000
	PENTOXYLON	111110101100X10X011111111000000
	GNETUM		1111X0100100X1001011X0XXX111011
	WELWITSCHIA	1111X0100000X1001011X1XXX111111
	EPHEDRA		111110101000X1001011X1XXX000111
	ANGIOSPERMS	111110100100X10X11111100X100000
	ANCESTOR	0000000000000000000000000000000
	;
END;