Meg
Megaceroides Joleaud, 1914 †
- Megaceroides algericus (Lydekker, 1890) †
Mammalia → Cetartiodactyla → Pecora → Cervidae → Cervinae → Megalocerini , Megadendromus , Megaderma , Megadermatidae , Megadontomys , Megaerops , Megaladapidae
†Megalagus Walker 1931
- †Megalagus abaconis Hayes 2000
- †Megalagus brachyodon Matthew 1903
- †Megalagus dawsoni Black 1961
- †Megalagus primitivus Schlaikjer 1935
- †Megalagus turgidus Cope 1873
Mammalia → Lagomorpha → Leporidae → Palaeolaginae
†Megalenhydris Willemsen & Maletesta, 1987
- †Megalenhydris barbaricina Willemsen and Malatesta 1987
Mammalia → Carnivora → Mustelidae → Lutrinae → Lutrini
Tribus †Megalocerini Viret, 1961
- Rodovi: Arvernoceros, Candiacervus, Megaceroides, Megaloceros, Neomegaloceros, Orchonoceros, Praedama, Praemegaceros, Praesinomegaceros, Sinomegaceros
Mammalia → Cetartiodactyla → Ruminantia → Pecora → Cervidae → Cervinae → Megalocerini
Megaloceros Brookes, 1828 †
- Megaloceros antecedens (Berckhemer, 1910) †
- Megaloceros baotouensis (Huang, Li & Nie, 1989) †
- Megaloceros giganteus (Blumenbach, 1799) - tipična vrsta†
- Megaloceros luochuanensis Xue, 1982 †
- Megaloceros sangganhoensis (Qi, 1983) †
Mammalia → Cetartiodactyla → Pecora → Cervidae → Cervinae → Megalocerini , Megaloglossus , Megalomys , Megalonychidae , Megaptera , Megasorex
Mel
, Melanomys , Melasmothrix , Meles , Mellivora , Melogale , Melomys , Melonycteris , Melursus
Men
, Menetes
Red Menotyphla Haeckel
Mammalia → Placentalia → Euarchontoglires → Archonta
Mep
Porodica Mephitidae Bonaparte, 1845
- Rodovi: Brachyopsigale †, Brachyprotoma †, Buisnictis †, Conepatus, Martinogale †, Mephitis, Mesomephitis †, Miomephitis †, Mydaus, Nannomephitis †, Osmotherium †, Palaeomephitis, Plesiomeles †, Pliogale †, Promephitis †, Spilogale
Mammalia → Carnivora → Caniformia → Musteloidea
Mephitis É. Geoffroy Saint-Hilaire and F. G. Cuvier, 1795
- Mephitis macroura Lichtenstein, 1832
- Mephitis macroura eximius Hall and Dalquest, 1950
- Mephitis macroura macroura Lichtenstein, 1832
- Mephitis macroura milleri Mearns, 1897
- Mephitis macroura richardsoni Goodwin, 1957
- Mephitis mephitis (Schreber, 1776)
- Mephitis mephitis avia Bangs, 1898
- Mephitis mephitis elongata Bangs, 1895
- Mephitis mephitis estor Merriam, 1890
- Mephitis mephitis holzneri Mearns, 1897
- Mephitis mephitis hudsonica Richardson, 1829
- Mephitis mephitis major (Howell, 1901)
- Mephitis mephitis mephitis (Schreber, 1776)
- Mephitis mephitis mesomelas Lichtenstein, 1832
- Mephitis mephitis nigra (Peale and Palisot de Beauvois, 1796)
- Mephitis mephitis notata (Howell, 1901)
- Mephitis mephitis occidentalis Baird, 1858
- Mephitis mephitis spissigrada Bangs, 1898
- Mephitis mephitis varians Gray, 1837
Mammalia → Carnivora → Caniformia → Mephitidae
Mer
, Meriones
Mes
, Mesechinus , Mesembriomys , Mesocapromys , Mesocricetus , Mesomys , Mesophylla , Mesoplodon
Met
, Metachirus
Infrarazred Metatheria Huxley, 1880
- Nadred Ameridelphia
- Nadred Australidelphia
- Red †Alphadontia
- Red †Deltatheroida
- Red †Asiadelphia
- Red †Sparassodonta
- Porodica †Aegialodontidae Kermack, 1967