#NEXUS BEGIN DATA; DIMENSIONS NTAX=18 NCHAR=16 ; FORMAT DATATYPE=STANDARD SYMBOLS=" 0 1" MISSING=? GAP=- ; MATRIX Archaeopteryx_lithographica 0000000000000000 Apsaravis_ukhaana 1000000000000000 Gansus_yumenensis 1110000000000000 Ichthyornis_dispar 1100000000000000 Baptornis_advenus 1111111000000000 Fumicollis_hoffmani_UNSM_20030 1111111110000000 Brodavis_varneri_SDSM_68430 1111111101000000 Brodavis_baileyi_UNSM_50665 1111111101000000 Enaliornis_spp 1111110000000000 Hesperornis_bairdi_YPM_17208A 1111111110111000 Hesperornis_gracilis 1111111110110100 Hesperornis_mengeli_CFDC_78_dot_01_dot_06 1111111110110100 Hesperornis_regalis 1111111110111100 Parahesperornis_alexi 1111111110100000 Pasquiaornis_spp 1111100000000000 Anas_clypeata 1111000000000011 Gallus_gallus 1111000000000011 Struthio_camelus 1111000000000010 ; END; BEGIN ASSUMPTIONS; OPTIONS DEFTYPE=unord PolyTcount=MINSTEPS ; END;