#NEXUS BEGIN DATA; DIMENSIONS NTAX=17 NCHAR=15; FORMAT SYMBOLS= " 0 1" MISSING=? GAP=- ; MATRIX Temnodontosaurus 000000000000000 Ichthyosaurus_communis 000000000000001 Stenopterygius_quadriscissus 000000000000011 Ophthalmosaurus_icenicus 000000001111111 Ophthalmosaurus_natans 000000011111111 Chacaicosaurus_cayi 000000000000111 Brachypterygius_extremus 000001100011111 Arthropterygius_chrisorum 000000000001111 Mollesaurus_perialus 000000000111111 Caypullisaurus_bonpartei 000110100011111 Aegirosaurus_leptospondylus 011001100011111 Platypterygius_australis 100110100011111 Platypterygius_hercynicus 000010100011111 Maiaspondylus_lindoei 001001100011111 Athabascasaurus_bitumineus 100110100011111 Sveltonectes_insolitus 011001100011111 Acamptonectes_densus 000000011111111 ; END; BEGIN ASSUMPTIONS; OPTIONS DEFTYPE=unord PolyTcount=MINSTEPS ; END;