#NEXUS BEGIN DATA; DIMENSIONS NTAX=30 NCHAR=29; FORMAT SYMBOLS= " 0 1" MISSING=? GAP=- ; MATRIX Ancestor 00000000000000000000000000000 Casea 00000000000000000000000000011 Ophiacodon 00000000000000000000000000111 Edaphosaurus 00000000000000000000000001111 Sphenacodontinae 00000000000000000000000011111 Biarmosuchia 00000000000000000000000111111 Dinocephalia 00000000000000000000001111111 Gorgonopsia 00000000000000000000011111111 Dicynodontia 00000000000000000000111111111 Therocephalia 00000000000000000001111111111 Procynosuchus 00000000000000000011111111111 Thrinaxodon 00000000000000000111111111111 Diademodon 00000000000000001111111111111 Exaeretodon 00000000000000011111111111111 Tritylodontidae 00000000000000111111111111111 Morganucodontidae 00000000000001111111111111111 Mammalia 00000000000001111111111111111 Testudines 00000000001110000000000000001 Captorhinidae 00000000000110000000000000001 Araeoscelidia 00000000011010000000000000001 Lepidosauromorpha 00000000111010000000000000001 Rhynchosauria 00000001111010000000000000001 Trilophosaurus 00000011111010000000000000001 Choristodera 00000111111010000000000000001 Protorosauria 00001111111010000000000000001 Proterosuchidae 00011111111010000000000000001 Erythrosuchidae 00111111111010000000000000001 Proterochampsidae 01111111111010000000000000001 Pseudosuchia 11111111111010000000000000001 Ornithosuchia 11111111111010000000000000001 ; END; BEGIN ASSUMPTIONS; OPTIONS DEFTYPE=unord PolyTcount=MINSTEPS ; END;