#NEXUS BEGIN DATA; DIMENSIONS NTAX=24 NCHAR=36 ; FORMAT DATATYPE=STANDARD SYMBOLS=" 0 1" MISSING=? GAP=- ; MATRIX Archaeopteryx_lithographica 000000000000000000000000000000000000 Apsaravis_ukhanna 100000000000000000000000000000000000 Gansus_yumenensis 110000000000000000000000000000000001 Ichthyornis_dispar 111000000000000000000000000000000000 Baptornis_advenus 111111110000000000000000000000000001 AMNH_5101 111111110000000000000000000000000001 FMNH_395 111111110000000000000000000000000001 UNSM_20030 111011111100000000000000000000000001 Brodavis_varneri_SDSM_68430 111011110110000000000000000000000001 Brodavis_baileyi_UNSM_50665 111011110110000000000000000000000001 Enaliornis 111001110000000000000000000000000001 Hesperornis_bairdi_YPM_17208A 111011111101110000000000111111000011 Hesperornis_gracilis 111011111100111000010000000000010111 Hesperornis_mengeli_CFDC_78_dot_01_dot_06 111011111100111000010111010010110111 Hesperornis_regalis 111011111101110100011110110110101111 Hesperornis_regalis_YPM_1477 111011111101110110011111110011101111 Hesperornis_regalis_USNM_13580 111011111100111000011100110000101111 Hesperornis_regalis_YPM_1476 111011111100110000011100111000000001 Hesperornis_regalis_FHSM_2069 111011111101110110011111110011101111 Parahesperornis_alexi 111011111100010000000000000000000001 Pasquiaornis 111000110000000000000000000000000001 Anas_clypeata 111000010000000001100000000000000001 Gallus_gallus 111000010000000001100000000000000001 Struthio_camelus 111000010000000000100000000000000001 ; END; BEGIN ASSUMPTIONS; OPTIONS DEFTYPE=unord PolyTcount=MINSTEPS ; END;