xread 'File downloaded from graemetlloyd.com' 13 9 Norselaspis 000?000000000 Placoderms 0001001000001 Chondrichthyans 0201001000011 Acanthodes 010?0010000?1 Mimia 120?001101211 Moythomasia 120?111111211 Ligulalepis 1101001000111 Psarolepis 2?1?00010011? Sarcopterygians 2210000100112 ; ccode -[/1 0 -[/1 1 -[/1 2 -[/1 3 -[/1 4 -[/1 5 -[/1 6 -[/1 7 -[/1 8 -[/1 9 -[/1 10 -[/1 11 -[/1 12 ; proc/;