O'Leary, M. A. Gatesy, J. 2008 Impact of increased character sampling on the phylogeny of Cetartiodactyla (Mammalia): combined analysis including fossils Cladistics 24 397-442 Orycteropus_afer Bos_taurus Ovis_aries Odocoileus_virginianus Cervus_elaphus Giraffa_camelopardalis Antilocapra_americana Moschus_moschiferus Tragulus Tursiops_truncatus Monodon_monoceros Inia_geoffrensis Pontoporia_blainvillei Kogia_breviceps Ziphius_cavirostris Balaenoptera_acutorostrata Hippopotamus_amphibius Choeropsis_liberiensis Sus_scrofa Babyrousa_babyrussa Potamochoerus_porcus Hylochoerus_meinertzhageni Tayassu_tajacu Camelus_dromedarius Lama_glama Dicerorhinus_sumatrensis Tapirus_terrestris Equus_caballus Hyopsodus Hyracotherium Artiocetus_clavis Rodhocetus_balochistanensis Dorudon_atrox Basilosaurus Sinonyx_jiashanensis Mesonyx_obtusidens Dissacus_praenuntius Dissacus_sp_dot_ Harpagolestes_orientalis Harpagolestes_uintensis Hapalodectes_hetangensis Helohyus_plicodon Pakicetidae Ambulocetus_natans Gobiohyus_orientalis Leptomeryx Poebrotherium Agriochoerus Merycoidodon_sp_dot_ Diacodexis_pakistanensis Diacodexis_sp_dot_ Perchoerus Archaeotherium Elomeryx Microbunodon_minimum Merycopotamus_dissimilis Xenohyus_venitor Cainotherium Phenacodus Protungulatum Anthracokeryx_ulnifer Libycosaurus_petrocchii Siamotherium_krabiense Brachyhyops_wyomingensis Achaenodon_uintensis Andrewsarchus_mongoliensis Pachyaena_ossifraga Protoceras_celer Indohyus_indirae Eoconodon_heilprinianus Bothriogenys Osteology Maximum Parsimony Based on reanalysis of the original matrix. OLeary_et_Gatesy_2008a