#NEXUS BEGIN DATA; DIMENSIONS NTAX=15 NCHAR=16; FORMAT SYMBOLS= " 0 1" MISSING=? GAP=- ; MATRIX Outgroup 0000000000000000 Anthracosauroideae 0000000000000001 Seymouriamorpha 0000000000000011 Solenodonsaurus 0000000000000111 Diadectomorpha 0000000000001111 Synapsida 0000000001111111 Pareiasauria 0000111110111111 Mesosauridae 0000000001111111 Millerettidae 0000001110011111 Procolophonia 0000110110111111 Captorhinidae 0011010010111111 Testudines 0011010010111111 Paleothyris 0101010010111111 Araeoscelidia 1101010010111111 Sauria 1101010010111111 ; END; BEGIN ASSUMPTIONS; OPTIONS DEFTYPE=unord PolyTcount=MINSTEPS ; END;