#NEXUS BEGIN DATA; DIMENSIONS NTAX=25 NCHAR=23; FORMAT SYMBOLS= " 0 1" MISSING=? GAP=- ; MATRIX Eusthenopteron 00000000000000000000000 Acanthostega 00000000000000000000001 Ichthyostega 00000000000000000000011 Crassigyrinus 00000000000000000001111 Gephyrostegus 00000000000000001111111 Proterogyrinus 00000000000000010111111 Pholiderpeton 00000000000000110111111 Greererpeton 00000000001111001111111 Balanerpeton 00000000011111001111111 Dendrerpeton 00000000011111001111111 Eucritta 00000000100111001111111 Megalocephalus 00000011100111001111111 Loxomma 00000001100111001111111 Baphetes 00000011100111001111111 Whatcheeria 00000100000000000000111 Pederpes 00000100000000000000111 Seymouria 00001000000001001111111 Eoherpeton 00000000000000000011111 Caerorhachis 00000000000011001111111 Westlotiana 00011000000001001111111 Silvanerpeton 00000000000000110111111 Adelogyrinus 11111000000001001111111 Microbrachis 11111000000001001111111 Saxonerpeton 01111000000001001111111 Ptyonius 00111000000001001111111 ; END; BEGIN ASSUMPTIONS; OPTIONS DEFTYPE=unord PolyTcount=MINSTEPS ; END;