#NEXUS BEGIN DATA; DIMENSIONS NTAX=19 NCHAR=18 ; FORMAT DATATYPE=STANDARD SYMBOLS=" 0 1" MISSING=? GAP=- ; MATRIX Balanerpeton_woodi 000000000000000000 Sclerocephalus_haeuseri 100000000000000000 Micromelerpeton_credneri 111000000000000000 Ecolsonia_cutlerensis 101000000000000000 Platyrhinops_lyelli 111111000000000000 Amphibamus_grandiceps 111111000000000000 Micropholis_stowii 111011000000000000 Branchiosaurus_salamandroides 111001100000000000 Apateon_pedestris 111001111110000001 Apateon_gracilis 111001101110000000 Apateon_caducus 111001111111100001 Apateon_kontheri 111001100110000001 Apateon_flagrifer 111001111111100001 Apateon_dracyi 111001111110100001 Melanerpeton_humbergense 111001100010011000 Melanerpeton_sembachense 111001100010001010 Melanerpeton_eisfeldi 111001100010001000 Schoenfelderpeton 111001100010011110 Leptorophus_tener 111001100010011110 ; END; BEGIN ASSUMPTIONS; OPTIONS DEFTYPE=unord PolyTcount=MINSTEPS ; END;