The major clades are colored: monotremes (black), marsupials (magenta), xenarthrans (orange), afrotherians (red), laurasiatherians (green), and euarchontoglires (blue).

All mammalian icons are from Wikimedia Commons, clockwise from the platypus:

• Ornithorhynchus | https://commons.wikimedia.org/wiki/File:Brehms_Tierleben._Allgemeine_kunde_des_Tierreichs_(1911)_(20413855495)_white_background.jpg
• Monodelphis domestica | https://commons.wikimedia.org/wiki/File:Monodelphis_domestica93-300b.jpg
• Macropus robustus | https://commons.wikimedia.org/wiki/File:Macropus_hagenbecki_1907.jpg
• Phascolarctos cinereus | https://commons.wikimedia.org/wiki/File:Koala_at_Birdland_Animal_Park.JPG
• Dasypus novemcinctus | https://commons.wikimedia.org/wiki/File:Dasypus_novemcinctus_-_MUSE.jpg
• Choloepus didactylus | https://commons.wikimedia.org/wiki/File:Choloepus_didactylus_-_MUSE.JPG
• Trichechus manatus | https://commons.wikimedia.org/wiki/File:Underwater_photography_on_endangered_mammal_manatee.jpg
• Loxodonta africana | https://commons.wikimedia.org/wiki/File:Elephant_white_background.png
• Elephantulus rupestris | https://commons.wikimedia.org/wiki/File:Elephantulus_rupestris_Smith_1839.tif
• Erinaceus europaeus | https://commons.wikimedia.org/wiki/File:Erinaceus_europaeus_h%C3%A9risson_Cuvier_Lasteyrie_BNF_Gallica.jpg
• Sorex araneus | https://commons.wikimedia.org/wiki/File:Faune_des_vert%C3%A9br%C3%A9s_de_la_Suisse_(Pl._V)_(7979672109).jpg
• Diceros bicornis | https://commons.wikimedia.org/wiki/File:Rhino_white_background.jpg
• Equus caballus | https://commons.wikimedia.org/wiki/File:TvN_Anglo-Araber.JPG
• Rhinolophus ferrumequinum | https://commons.wikimedia.org/wiki/File:British_mammals_(Pl._1)_BHL48418555.jpg
• Myotis bechsteinii | https://commons.wikimedia.org/wiki/File:British_mammals_(Pl._6)_BHL48418496.jpg
• Manis crassicaudata | https://commons.wikimedia.org/wiki/File:FMIB_46859_Pangolin_a_grosse_queue_white_background.jpeg
• Felis catus | https://commons.wikimedia.org/wiki/File:Anatomie_descriptive_et_comparative_du_chat_(1845)_Pl-I_(white_background_%26_colourised).jpg
• Canis lupus | https://commons.wikimedia.org/wiki/File:Yakutian_laika_(white_background).jpg
• Ailuropoda melanoleuca | https://commons.wikimedia.org/wiki/File:Pandas!!_(GIANT_PANDA-WOLONG-SICHUAN-CHINA)_(2151393048).jpg
• Odobenus spe | https://commons.wikimedia.org/wiki/File:Walrus_animal_male_detailed_photo_white_background.jpg
• Camelus bactrianus | https://commons.wikimedia.org/wiki/File:Camel_seitlich_trabend.jpg
• Sus scrofa | https://commons.wikimedia.org/wiki/File:Recherches_pour_servir_%C3%A0_l%27histoire_naturelle_des_mammif%C3%A8res_(Pl._80)_(white_background).jpg
• Balaenoptera acutorostrata | https://commons.wikimedia.org/wiki/File:Balaenoptera_acutorostrata_NOAA.jpg
• Physeter macrocephalus | https://commons.wikimedia.org/wiki/File:EB1911_Sperm-Whale.jpg
• Tursiops spe | https://commons.wikimedia.org/wiki/File:Parc_Asterix_20.jpg
• Odocoileus virginianus | https://commons.wikimedia.org/wiki/File:The_deer_of_all_lands_(1898)_Virginia_deer_white_background.png
• Capra hircus | https://commons.wikimedia.org/wiki/File:Castellet_-_Ch%C3%A8vre.jpg
• Bos taurus | https://commons.wikimedia.org/wiki/File:Bos_taurus.003_-_San_Emiliano_(Leon).jpg
• Tupaia tana | https://commons.wikimedia.org/wiki/File:Tupaia_tana_J_Smit.jpg
• Oryctolagus cuniculus | https://commons.wikimedia.org/wiki/File:Oryctolagus_cuniculus_(AM_LM817).jpg
• Ictidomys mexicanus | https://commons.wikimedia.org/wiki/File:Mexican_ground_squirrel_ictidomys_mexicanus.jpg
• Heterocephalus glaber | https://commons.wikimedia.org/wiki/File:Naked-Mole-Rat_extracted-on-white-background.jpg
• Octodon degus | https://commons.wikimedia.org/wiki/File:Octodon_cumingii_TZSL_white_background.jpg
• Castor | https://commons.wikimedia.org/wiki/File:Die_Gartenlaube_(1858)_b_068_white_background.jpg
• Jaculus jaculus | https://commons.wikimedia.org/wiki/File:Jaculus_jaculus_-_Leonardo_Hidalgo_Insuasti.jpg
• Cricetulus vulgaris | https://commons.wikimedia.org/wiki/File:FMIB_46816_Hamster_ordinaire_white_background.jpeg
• Microtus arvalis | https://commons.wikimedia.org/wiki/File:Microtus_arvalis_lenghts.JPG
• Rattus norvegicus | https://commons.wikimedia.org/wiki/File:Rattus_norvegicus_(white_background).png
• Mus musculus | https://commons.wikimedia.org/wiki/File:%D0%9C%D1%8B%D1%88%D1%8C_2_(cropped).jpg
• Cynocephalus volans | https://commons.wikimedia.org/wiki/File:Cynocephalus_volans_Brehm1883_(white_background).jpg
• Otolemur garnetti | https://commons.wikimedia.org/wiki/File:GalagoGarnettiiWolf.jpg
• Carlito (Tarsius) spe | https://commons.wikimedia.org/wiki/File:S%C3%A4ugethiere_vom_Celebes-_und_Philippinen-Archipel_(Taf._III)_(white_background)_(1).jpg
• Saimiri boliviensis | https://commons.wikimedia.org/wiki/File:Saimiri_boliviensis_1847.jpg
• Hylobates lar | https://commons.wikimedia.org/wiki/File:Hylobates_variegatus_-_1868_-_Print_-_Iconographia_Zoologica_-_Special_Collections_University_of_Amsterdam_-_UBA01_IZ19800109.tif
• Pongo | https://commons.wikimedia.org/wiki/File:OranUtan.jpg
• Gorilla gorilla | https://commons.wikimedia.org/wiki/File:Gorila_de_llanura_occidental._Gorilla_gorilla_-_Blanca_Mart%C3%AD_de_Ahumada_(white_background).jpg
• Homo sapiens | https://commons.wikimedia.org/wiki/File:Ernst_Wenck_-_Trinkendes_Mädchen.jpg
• Pan troglodytes | https://commons.wikimedia.org/wiki/File:PanTroglodytesSmit_(white_background).jpg
• Colobus | https://commons.wikimedia.org/wiki/File:Handbook_to_the_Primates_Plate_34.jpg
• Chlorocebus sabaeus | https://commons.wikimedia.org/wiki/File:Green_monkey_(Chlorocebus_sabaeus)_male.jpg
• Papio papio (ex Cynocephalus sphinx) | https://commons.wikimedia.org/wiki/File:Cynocephalus_sphinx_-_1829-1867_-_Print_-_Iconographia_Zoologica_-_Special_Collections_University_of_Amsterdam_-_(white_background).tif
• Mandrillus sphinx | https://commons.wikimedia.org/wiki/File:Mandrillus_white_background.jpg
• Macaca mulatta | https://commons.wikimedia.org/wiki/File:Macaca_mulatta_(22886604281).jpg