#NEXUS BEGIN DATA; DIMENSIONS NTAX=23 NCHAR=21; FORMAT SYMBOLS= " 0 1" MISSING=? GAP=- ; MATRIX Acanthostega 000000000000000000000 Whatcheeridae 000000000000000000001 Crassigyrinus 000000000000000000111 Anthracosauroidea 000000000000000011111 Baphetidae 000000000000000000011 Caerorhachis 000000000000000111111 Colosteidae 000000000000000001111 Basal_temnospondyls 000000000000001111111 Branchiosauridae 000000000000011111111 Amphibamidae 000000000000111111111 Rhynchonkos 000000000111111111111 Acherontiscus 000001111001111111111 Aistopoda 000000111001111111111 Adelospondyli 000001111001111111111 Lysorophia 000000011001111111111 Microsauria 000110001001111111111 Nectridea 000110001001111111111 Early_amniotes 000010001001111111111 Albanerpetontidae 001000000011111111111 Urodela 011000000011111111111 Triadobatrachidae 111000000011111111111 Anura 111000000011111111111 Caecilia 000000000111111111111 ; END; BEGIN ASSUMPTIONS; OPTIONS DEFTYPE=unord PolyTcount=MINSTEPS ; END;