#NEXUS BEGIN DATA; DIMENSIONS NTAX=20 NCHAR=17; FORMAT SYMBOLS= " 0 1" MISSING=? GAP=- ; MATRIX Prolacerta 00000000000000000 Youngina 11000000000000000 Rhynchosauria 11000000000000000 Proterosuchus 01100000000000000 Erythrosuchidae 01110000000000000 Euparkeria 01111000000000000 Proterochampsidae 01111100000000000 Parasuchia 01111111000000000 Gracilisuchus 01111111111000000 Stagonolepidae 01111111000100000 Prestosuchidae 01111111000100000 Postosuchus 01111111111000000 Crocodylomorpha 01111111011000000 Ornithosuchidae 01111111001000000 Pterosauria 01111101000010000 Lagosuchus 01111101000011000 Herrerasaurus 01111101000011111 Ornithischia 01111101000011001 Sauropodomorpha 01111101000011011 Ceratosauria_and_Tetanurae 01111101000011111 ; END; BEGIN ASSUMPTIONS; OPTIONS DEFTYPE=unord PolyTcount=MINSTEPS ; END;