#NEXUS BEGIN DATA; DIMENSIONS NTAX=9 NCHAR=7; FORMAT SYMBOLS= " 0 1" MISSING=? GAP=- ; MATRIX Captorhinidae 0000000 Paleothyris 0000001 Spinoaequalis 0000111 Petrolacosaurus 0001111 Araeoscelis 0001111 Apsisaurus 0010011 Acerosodontosaurus 1110011 Youngina 1110011 Hovasaurus 0110011 ; END; BEGIN ASSUMPTIONS; OPTIONS DEFTYPE=unord PolyTcount=MINSTEPS ; END;