Classification of Kurten and Anderson 1980
Or. Carnivora Bowdich 1821 [carnivoran]
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Subor. Fissipedia Blumenbach 1791
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Fm. Canidae Fischer de Waldheim 1817 [canid]
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Subfm. Caninae Gill 1872 [canine]
G. Canis Linnaeus 1758 [canine]
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†Canis armbrusteri Gidley 1913
†Canis cedazoensis Mooser and Dalquest 1975
†Canis dirus Leidy 1858 [dire wolf]
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Invalid names: Canis ayersi Sellards 1916 [synonym], Canis indianensis Leidy 1869 [synonym], Canis mississippiensis Allen 1876 [synonym]
Canis familiaris Linnaeus 1758 [dog]
Canis latrans Say 1823 [coyote]
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Invalid names: Canis andersoni Merriam 1910 [synonym], Canis caneloensis Skinner 1942 [synonym], Canis irvingtonensis Savage 1951 [synonym], Canis orcutti Merriam 1910 [synonym], Canis riviveronis Hay 1917 [synonym]
Invalid names: Aenocyon Merriam 1918 [synonym]
Subfm. †Simocyoninae
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G. †Borophagus Cope 1892
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†Borophagus direptor Matthew 1924
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Invalid names: Hyaenognathus solus Stock 1932 [synonym], Osteoborus crassapineatus Olsen 1956 [synonym], Osteoborus crassipinaetus Olsen 1956 [synonym], Osteoborus hilli Johnston 1939 [synonym], Osteoborus progressus Hibbard 1944 [synonym]
†Borophagus diversidens Cope 1892
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Invalid names: Felis hillanus Cope 1893 [synonym], Hyaenognathus matthewi Freudenberg 1910 [synonym], Hyaenognathus pachyodon Merriam 1903 [synonym], Porthocyon dubius Merriam 1903 [synonym], Porthocyon matthewi Freudenberg 1910 [synonym]
G. Urocyon Baird 1857 [gray fox]
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Urocyon cinereoargenteus Schreber 1775 [gray fox]
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Invalid names: Urocyon atwaterensis Getz 1960 [synonym], Urocyon minicephalus Martin 1974 [synonym]
Urocyon littoralis Baird 1857 [island gray fox]
†Urocyon progressus Stevens 1965
G. Vulpes Frisch 1775 [fox]
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Vulpes macrotis Merriam 1888 [kit fox]
Vulpes velox Say 1823 [swift fox]
Vulpes vulpes Linnaeus 1758 [red fox]
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Invalid names: Vulpes fulva Desmarest 1829 [synonym], Vulpes palmaria Hay 1917 [synonym]
Fm. Felidae Gray 1821 [cat]
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Subfm. Felinae Trouessart 1885
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G. Acinonyx Brookes 1828 [cheetah]
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†Acinonyx trumani Orr 1969
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Invalid names: Felis longicrus Brown 1908 [synonym], Smilodontopsis mooreheadi Hay 1920 [synonym]
G. Felis Linnaeus 1758 [cat]
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†Felis amnicola Gillette 1976
Felis concolor Linnaeus 1771 [puma]
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Invalid names: Felis bituminosa Merriam and Stock 1932 [synonym], Felis daggetti Merriam 1918 [synonym], Felis hawveri Stock 1918 [synonym]
Felis pardalis Linnaeus 1758 [ocelot]
Felis wiedii Schinz 1821 [margay]
Felis yagouaroundi Geoffroy 1803 [jaguarundi]
G. Lynx Kerr 1792 [lynx]
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Lynx canadensis Kerr 1792 [Canadian lynx]
†Lynx issiodorensis Croizet and Jobert 1828
Lynx lynx Linnaeus 1758 [Eurasian lynx]
G. Panthera Oken 1816
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Panthera leo Linnaeus 1758 [lion]
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Invalid names: Felis imperialis Leidy 1873 [synonym], Panthera leo atrox Leidy 1853 [synonym]
Panthera onca Linnaeus 1758 [jaguar]
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Invalid names: Felis augustus Leidy 1872 [synonym], Felis veronis Hay 1919 [synonym]
Subfm. †Machairodontinae Gill 1872
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G. †Homotherium Fabrini 1890
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†Homotherium serum Cope 1893
Invalid names: Dinobastis Cope 1893 [synonym]
G. †Ischyrosmilus Merriam 1918
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†Ischyrosmilus ischyrus Merriam 1905
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Invalid names: Ischyrosmilus crusafonti Schultz and Martin 1970 [synonym], Ischyrosmilus idahoensis Merriam 1918 [synonym], Ischyrosmilus johnstoni Mawby 1965 [synonym]
G. †Smilodon Lund 1841 [saber-toothed cat]
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†Smilodon fatalis Leidy 1868
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Invalid names: Machaerodus floridanus Leidy 1889 [synonym], Smilodon californicus Bovard 1907 [synonym], Smilodon nebraskensis Matthew 1918 [synonym], Smilodon trinitiensis Slaughter 1960 [synonym], Smilodontopsis conardi Brown 1908 [synonym], Smilodontopsis troglodytes Brown 1908 [synonym]
Invalid names: Smilodontopsis Brown 1908 [synonym], Trucifelis Leidy 1869 [synonym]
Fm. Hyaenidae Gray 1821 [hyaena]
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G. †Chasmaporthetes Hay 1921
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†Chasmaporthetes ossifragus Hay 1921
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Invalid names: Ailuraena johnstoni Stirton and Christian 1940 [synonym]
Invalid names: Ailuraena Stirton and Christian 1940 [synonym]
Fm. Mustelidae Fischer 1817 [mustelid carnivore]
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G. Lontra Gray 1843 [otter]
Subfm. Lutrinae Baird 1857 [otter]
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G. Enhydra Fleming 1822 [sea otter]
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Enhydra lutris Linnaeus 1758 [sea otter]
†Enhydra macrodonta Kilmer 1972
G. †Enhydriodon Falconer 1868
G. Lutra Brisson 1762 [otter]
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Lutra canadensis Schreber 1776 [North American river otter]
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Invalid names: Lutra iowa Goldman 1941 [synonym], Lutra parvicuspis Gidley and Gazin 1933 [synonym], Lutra rhoadsii Cope 1896 [synonym]
G. †Satherium Gazin 1934
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Subfm. Melinae Burmeister 1872 [badger]
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G. Taxidea Waterhouse 1839 [badger]
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Taxidea taxus Schreber 1778 [American badger]
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Invalid names: Taxidea marylandica Gidley and Gazin 1933 [synonym], Taxidea robusta Hay 1921 [synonym], Taxidea sulcata Cope 1877 [synonym]
Subfm. Mephitinae Bonaparte 1845 [skunk]
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G. †Brachyprotoma Brown 1908
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†Brachyprotoma obtusata Cope 1899 [short-faced skunk]
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Invalid names: Brachyprotoma pristina Brown 1908 [synonym], Brachyprotoma spelaea Brown 1908 [synonym]
G. Conepatus Gray 1837 [hog-nosed skunk]
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Conepatus leuconotus Lichtenstein 1832 [eastern hog-nosed skunk]
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Invalid names: Mephitis mesoleucus Lichtenstein 1832 [synonym]
G. †Osmotherium Cope 1896
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†Osmotherium spelaeum Cope 1896
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Invalid names: Mephitis fossidens Cope 1896 [synonym], Mephitis leptops Cope 1899 [synonym], Mephitis orthostichus Cope 1896 [synonym], Pelycictis lobulatus Cope 1896 [synonym]
G. Spilogale Gray 1865
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Spilogale gracilis Merriam 1890 [western spotted skunk]
Spilogale putorius Linnaeus 1758 [eastern spotted skunk]
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Invalid names: Spilogale marylandensis Gidley and Gazin 1933 [synonym], Spilogale pedroensis Gazin 1942 [synonym]
†Spilogale rexroadi Hibbard 1941
Subfm. †Mustelinae Fischer 1817
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G. Gulo Storr 1780 [wolverine]
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G. Martes Frisch 1775 [marten]
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Martes americana Kerr 1792 [American marten]
†Martes nobilis Hall 1926
Martes pennanti Erxleben 1777 [fisher]
G. Mustela Linnaeus 1758 [weasel]
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Mustela erminea Linnaeus 1758 [stoat]
Mustela eversmanni Lesson 1827
Mustela frenata Lichtenstein 1831 [long-tailed weasel]
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Invalid names: Mustela reliquus Hall 1960 [synonym]
†Mustela macrodon Prentiss 1903 [sea mink]
†Mustela meltoni Bjork 1973
Mustela nigripes Audubon and Bachman 1851 [black-footed ferret]
†Mustela rexroadensis Hibbard 1950
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Invalid names: Martes gazini Hibbard 1958 [synonym], Mustela gazini Hibbard 1958 [synonym]
Mustela rixosa Bangs 1896
Mustela vison Schreber 1777 [mink]
Invalid names: Grisoninae Pocock 1921 [empty]
Fm. Procyonidae Gray 1825 [procyonid carnivore]
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Subfm. Ailurinae Bonaparte 1850 [red panda]
Subfm. Procyoninae Gray 1825
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G. Bassariscus Coues 1887 [ringtail]
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Bassariscus astutus Lichtenstein 1830 [ringtail]
†Bassariscus casei Hibbard 1952
†Bassariscus sonoitensis Skinner 1942
Invalid names: Bassaris [replaced]
G. Procyon Storr 1780 [raccoon]
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Procyon lotor Linnaeus 1758 [raccoon]
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Invalid names: Procyon nanus Simpson 1929 [synonym], Procyon priscus Leconte 1848 [synonym], Procyon simus Gidley 1906 [synonym]
†Procyon rexroadensis Hibbard 1941
Fm. Ursidae Gray 1825 [bear]
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Subfm. Ursinae Swainson 1835
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G. Ursus Linnaeus 1758
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†Ursus abstrusus Bjork 1970
Ursus americanus Pallas 1780 [black bear]
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Invalid names: Euarctos optimus Shultz 1938 [synonym], Euarctos vitabilis Gidley 1913 [synonym], Ursus (Euarctos) vitabilis Gidley 1913 [synonym], Ursus amplidens Leidy 1853 [synonym], Ursus optimus Schultz 1938 [synonym]
Ursus arctos Linnaeus 1758 [brown bear]
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Invalid names: Ursus horribilis Ord 1815 [synonym], Ursus procerus Miller, Jr. 1899 [synonym]
Ursus maritimus Phipps 1774 [polar bear]
Invalid names: Tremarctinae Merriam and Stock 1925 [empty]
Subor. Pinnipedia Illiger 1811 [pinniped]
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Fm. Odobenidae Allen 1880 [walrus]
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Fm. Otariidae Gray 1825 [eared seal]
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G. Zalophus Gill 1866 [California sea lion]
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Zalophus californianus Lesson 1828 [California sea lion]
Fm. Phocidae Gray 1821 [seal]
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Subfm. Monachinae Trouessart 1897
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Subfm. Phocinae Gray 1821 [seal]
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G. Phoca Linnaeus 1758 [seal]
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Phoca groenlandica Erxleben 1777 [harp seal]
Phoca hispida Schreber 1775 [ringed seal]
Phoca vitulina Linnaeus 1758 [harbor seal]
Or. Insectivora Bowdich 1821 [insectivoran]
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Fm. Soricidae Fischer 1814 [shrew]
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G. Blarina Gray 1838 [American short-tailed shrew]
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Blarina brevicauda Say 1823 [northern short-tailed shrew]
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Invalid names: Blarina fossilis Hibbard 1943 [synonym], Blarina simplicidens Cope 1899 [synonym]
†Blarina ozarkensis Brown 1908
G. Cryptotis Pomel 1848 [small-eared shrew]
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†Cryptotis adamsi Hibbard 1953
†Cryptotis meadensis Hibbard 1953
Cryptotis mexicana Coues 1877 [Mexican small-eared shrew]
Cryptotis parva Say 1823 [North American least shrew]
G. †Microsorex Preble 1910
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Microsorex hoyi Baird 1858 [American pygmy shrew]
†Microsorex minutus Brown 1908
†Microsorex pratensis Hibbard 1944
G. Notiosorex Baird 1877 [gray shrew]
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Notiosorex crawfordi Coues 1877 [Crawford's gray shrew]
†Notiosorex jacksoni Hibbard 1950
G. Sorex Linnaeus 1758 [long-tailed shrew]
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Sorex arcticus Kerr 1792 [arctic shrew]
Sorex cinereus Kerr 1792 [cinereus shrew]
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Invalid names: Sorex franktownensis Peterson 1926 [synonym], Sorex personatus Brown 1908 [synonym]
†Sorex cudahyensis Hibbard 1944
Sorex dispar Batchelder 1896 [long-tailed shrew]
Sorex fumeus Miller 1895 [smoky shrew]
†Sorex hagermanensis Hibbard and Bjork 1971
†Sorex kansasensis McMullen 1975
†Sorex lacustris Hibbard 1944
†Sorex leahyi Hibbard 1956
Sorex longirostris Bachman 1837 [southeastern shrew]
†Sorex megapalustris Paulson 1961
†Sorex meltoni Hibbard and Bjork 1971
Sorex merriami Dobson 1890
Sorex ornatus Merriam 1895
Sorex palustris Richardson 1828 [American water shrew]
†Sorex powersi Hibbard and Bjork 1971
†Sorex rexroadensis Hibbard 1953
†Sorex sandersi Hibbard 1956
Sorex saussurei Merriam 1892
†Sorex scottensis Jammot 1972
†Sorex taylori Hibbard 1937
Sorex trowbridgii Baird 1858
Sorex vagrans Baird 1858
Fm. Talpidae Fischer de Waldheim 1817 [mole]
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G. Scalopus Geoffroy 1803
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Scalopus aquaticus Linnaeus 1758 [eastern mole]
†Scalopus blancoensis Dalquest 1975
†Scalopus rexroadi Hibbard 1941
Or. Chiroptera Blumenbach 1779 [bat]
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Subor. Microchiroptera Dobson 1875
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G. †Afropterus Lavocat 1961
Fm. Molossidae Gervais 1856 [free-tailed bat]
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G. Eumops Miller 1906 [mastiff bat]
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Eumops glaucinus Wagner 1843 [Wagner's bonneted bat]
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Invalid names: Molossides floridanus Allen 1932 [synonym]
Eumops perotis Schinz 1821 [western mastiff bat]
Invalid names: Molossides Allen 1932 [synonym]
G. Nyctinomus Geoffroy 1818
G. Tadarida Rafinesque 1814
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Tadarida brasiliensis Geoffroy 1824 [Mexican free-tailed bat]
†Tadarida constantinei Lawrence 1960
Fm. Mormoopidae Saussure 1860 [ghost-faced bat]
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Fm. †Phyllostomatidae Savage 1951
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G. †Notonycteris Savage 1951
Subfm. Phyllostomatinae Gray 1825
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G. †Vampyravus Schlosser 1910
Fm. Vespertilionidae Gray 1821 [vesper bat]
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G. Barbastella Gray 1821
G. †Chamtwaria Butler 1984
G. Miniopterus Bonaparte 1837 [bend-winged bat]
G. Nyctalus Bowdich 1925
G. †Paleptesicus Zapfe 1970
G. Scotophilus Leach 1821
G. †Stehlinia Revilliod 1919
G. Vespertilio Linnaeus 1758
Subfm. Vespertilionae Kurten and Anderson 1980
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G. Dasypterus Reuter 1871
G. Eptesicus Rafinesque 1820 [house bat]
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Eptesicus fuscus Beauvois 1796 [big brown bat]
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Invalid names: Eptesicus grandis Brown 1908 [synonym]
G. Lasiurus Gray 1831 [hairy-tailed bat]
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†Lasiurus borealis Muller 1776
†Lasiurus cinereus Palisot de Beauvois 1796
†Lasiurus fossilis Hibbard 1950
†Lasiurus golliheri Hibbard 1960
Lasiurus intermedius Allen 1862 [northern yellow bat]
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Invalid names: Dasypterus floridanus Miller 1902 [synonym]
G. Myotis Kaup 1829
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†Myotis austroriparius Rhoads 1897
†Myotis californicus Audubon and Bachman 1842
†Myotis evotis Allen 1864
†Myotis grisecens Howell 1909
†Myotis keenii Merriam 1895
†Myotis leibi Audubon and Bachman 1842
†Myotis lucifugus Le Conte 1831
†Myotis mangamolaris Choate and Hall 1967
†Myotis rectidentis Choate and Hall 1967
†Myotis sodalis Miller and Allen 1928
†Myotis thysanodes Miller 1897
Myotis velifer Allen 1890 [cave myotis]
†Myotis volans Allen 1866
G. Pipistrellus Kaup 1829 [pipistrelle bat]
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Pipistrellus hesperus Allen 1864 [western pipistrelle]
Pipistrellus subflavus Cuvier 1832 [eastern pipistrelle bat]
G. Plecotus Geoffroy 1818
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†Plecotus alleganiensis Gidley and Gazin 1933
†Plecotus rafinesquii Lesson 1818
†Plecotus tetralophodon Handley 1955
Plecotus townsendii Cooper 1837 [Townsend's big-eared bat]
Invalid names: Nyctophylinae [empty]
Invalid names: Megachiroptera Dobson 1875 [empty]
Superfm. †Icaronycteroidea
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Fm. †Archaeonycterididae Revilliod 1917
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G. †Archaeonycteris Revilliod 1917
G. †Cecilionycteris Heller 1935
G. †Icaronycteris Jepsen 1966
G. †Matthesia Smith and Storch 1981
G. †Palaeochiropteryx Revilliod 1917
Fm. Emballonuridae Dobson 1875 [sac-winged bat]
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G. Taphozous Geoffroy 1818
G. †Vespertiliavus Schlosser 1877
Fm. Megadermatidae Allen 1864 [false vampire]
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G. Cardioderma Peters 1873 [Heart-nosed bat]
G. Megaderma Geoffroy 1810
G. †Necromantis Weithofer 1887
Fm. Rhinolophidae Gray 1825 [horseshoe bat]
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G. †Palaeonycteris Pomel 1854
G. Rhinolophus Lacépède 1799
Fm. Hipposideridae Lydekker 1891 [leaf-nosed bat]
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G. Asellia Gray 1838
G. Hipposideros Gray 1831 [roundleaf bat]
G. †Palaeophyllopora Revilliod 1922
G. †Paraphyllophora Revilliod 1922
G. Rhinonycteris Gray 1847
Fm. Myzopodidae Milne-Edwards and Grandidier 1878 [sucker-footed bat]
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G. Myzopoda Milne-Edwards and Grandidier 1878
Or. Rodentia Bowdich 1821 [rodent]
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Fm. Aplodontidae Brandt 1855 [mountain beaver]
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Fm. Castoridae Gray 1821 [beaver]
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G. Castor Linnaeus 1758 [beaver]
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†Castor accessor Hay 1927
†Castor californicus Kellogg 1911
Castor canadensis Kuhl 1820 [American beaver]
G. †Castoroides Foster 1838 [giant beaver]
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†Castoroides ohioensis Foster 1838
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Invalid names: Burosor efforsorius Starrett 1956 [synonym], Castoroides nebrascensis Barbour 1931 [synonym]
G. †Dipoides Jaeger 1835
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†Dipoides intermedius Zakrzewski 1969
†Dipoides rexroadensis Hibbard and Riggs 1949
G. †Procastoroides Barbour and Schultz 1937
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†Procastoroides idahoensis Shotwell 1970
†Procastoroides sweeti Barbour and Schultz 1937
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Invalid names: Eocastoroides lanei Hibbard 1937 [synonym]
Invalid names: Eocastoroides Hibbard 1937 [synonym]
Fm. Cricetidae Fischer von Waldheim 1817
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Subfm. Cricetinae Fischer von Waldheim 1817
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G. Baiomys True 1894 [pygmy mouse]
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†Baiomys aquilonius Zakrzewski 1969
†Baiomys brachygnathus Gidley 1922
†Baiomys kolbi Hibbard 1952
†Baiomys minimus Gidley 1922
†Baiomys rexroadensis Hibbard 1941
Baiomys taylori Thomas 1887 [northern pygmy mouse]
G. †Bensonomys Gazin 1942
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†Bensonomys arizonae Gidley 1922
†Bensonomys eliasi Hibbard 1937
†Bensonomys meadensis Hibbard 1956
G. Neotoma Say and Ord 1825 [pack rat]
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Neotoma albigula Hartley 1894 [white-throated woodrat]
Neotoma cinerea Ord 1815 [bushy-tailed woodrat]
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Invalid names: Teonoma spelaea Sinclair 1905 [synonym]
†Neotoma fossilis Gidley 1922
Neotoma fuscipes Baird 1858 [dusky-footed woodrat]
Neotoma lepida Thomas 1893 [desert woodrat]
Neotoma mexicana Baird 1855 [Mexican woodrat]
Neotoma micropus Baird 1855 [southern plains woodrat]
†Neotoma quadriplicata Hibbard 1941
†Neotoma spelaea Gidley and Gazin 1933
†Neotoma taylori Hibbard 1967
Invalid names: Parahodomys Gidley and Gazin 1933 [synonym]
G. Onychomys Baird 1858 [grasshopper mouse]
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†Onychomys fossilis Hibbard 1941
†Onychomys gidleyi Hibbard 1941
†Onychomys jinglebobensis Hibbard 1955
Onychomys leucogaster Wied-Neuwied 1841 [northern grasshopper mouse]
†Onychomys pedroensis Gidley 1922
†Onychomys torridus Coues 1874
G. Oryzomys Baird 1857 [rice rat]
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†Oryzomys palustris Harlan 1837 [marsh rice rat]
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Invalid names: Oryzomys fossilis Hibbard 1955 [synonym]
G. Peromyscus Gloger 1841 [deer mouse]
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†Peromyscus anyapahensis White 1966
†Peromyscus baumgartneri Hibbard 1954
†Peromyscus berendsensis Starrett 1956
Peromyscus boylii Baird 1855 [brush mouse]
†Peromyscus cochrani Hibbard 1955
†Peromyscus cragini Hibbard 1944
Peromyscus crinitus Merriam 1891 [canyon mouse]
†Peromyscus cumberlandensis Guilday and Handley 1967
Peromyscus difficilis Allen 1891
Peromyscus eremicus Baird 1858
Peromyscus floridanus Chapman 1889 [Florida mouse]
Peromyscus gossypinus Le Conte 1853 [cotton mouse]
†Peromyscus hagermanensis Hibbard 1962
†Peromyscus imperfectus Dice 1925
†Peromyscus irvingtonensis Savage 1951
†Peromyscus kansasensis Hibbard 1941
Peromyscus leucopus Rafinesque 1818 [white-footed mouse]
Peromyscus maniculatus Wagner 1843 [deer mouse]
†Peromyscus nesodytes Wilson 1936
†Peromyscus oklahomensis Stephens 1960
Peromyscus pectoralis Osgood 1904 [white-ankled mouse]
Peromyscus polionotus Wagner 1843 [oldfield mouse]
†Peromyscus progressus Hibbard 1960
Peromyscus truei Shufeldt 1885 [pinyon mouse]
Invalid names: Podomys Osgood 1909 [synonym]
G. Reithrodontomys Giglioli 1874 [harvest mouse]
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Reithrodontomys fulvescens Allen 1894 [fulvous harvest mouse]
Reithrodontomys humulis Audubon and Bachman 1841 [eastern harvest mouse]
Reithrodontomys megalotis Baird 1858 [western harvest mouse]
Reithrodontomys montanus Baird 1855 [plains harvest mouse]
†Reithrodontomys moorei Hibbard 1944
†Reithrodontomys pratincola Hibbard 1941
†Reithrodontomys rexroadensis Hibbard 1952
G. Sigmodon Say and Ord 1825 [cotton rat]
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†Sigmodon bakeri Martin 1974
†Sigmodon curtisi Gidley 1922
Sigmodon hispidus Say and Ord 1825 [hispid cotton rat]
†Sigmodon hudspethensis Strain 1966
†Sigmodon medius Gidley 1922
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Invalid names: Sigmodon hilli Hibbard 1941 [synonym], Sigmodon intermedius Hibbard 1937 [synonym], Sigmodon minor Gidley 1922 [synonym]
Sigmodon ochrognathus Bailey 1902
Subfm. Microtinae
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G. Dicrostonyx Gloger 1841 [lemming]
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Dicrostonyx hudsonius Pallas 1778 [Ungava collared lemming]
Dicrostonyx torquatus Pallas 1778 [Arctic lemming]
G. Microtus Schrank 1798 [vole]
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†Microtus aratai Martin 1974
Microtus californicus Peale 1848 [California vole]
Microtus chrotorrhinus Miller 1894 [rock vole]
†Microtus cumberlandensis van der Meulen 1978
†Microtus deceitensis Guthrie and Matthews, Jr. 1971
†Microtus guildayi van der Meulen 1978
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Invalid names: Arvicola didelta Cope 1871 [synonym], Arvicola involuta Cope 1871 [synonym], Arvicola sigmodus Cope 1871 [synonym], Arvicola speothen Cope 1871 [synonym], Arvicola tetradelta Cope 1871 [synonym], Microtus involutus Cope 1871 [synonym]
†Microtus hibbardi Holman 1959
†Microtus llanensis Hibbard 1944
Microtus longicaudus Merriam 1888 [long-tailed vole]
†Microtus mcnowni Hibbard 1937
†Microtus meadensis Hibbard 1944
Microtus mexicanus Saussure 1861 [Mexican vole]
Microtus miurus Osgood 1901
Microtus montanus Peale 1848 [montane vole]
Microtus ochrogaster Wagner 1842 [prairie vole]
†Microtus paroperarius Hibbard 1944
Microtus pennsylvanicus Ord 1815 [meadow vole]
Microtus pinetorum Le Conte 1830 [woodland vole]
†Microtus pliocaenicus Kormos 1932
Microtus xanthognathus Leach 1815 [taiga vole]
Invalid names: Allophaiomys Kormos 1932 [synonym]
G. †Nebraskomys Hibbard 1957
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†Nebraskomys mcgrewi Hibbard 1957
†Nebraskomys rexroadensis Hibbard 1970
G. Neofiber True 1884
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Neofiber alleni True 1884 [round-tailed muskrat]
†Neofiber leonardi Hibbard 1943
G. Ondatra Link 1795 [muskrat]
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†Ondatra idahoensis Wilson 1933
Invalid names: Anaptogonia Cope 1899 [synonym]
G. †Ophiomys Hibbard and Zakrzewski 1967
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†Ophiomys fricki Hibbard 1972
†Ophiomys magilli Hibbard 1972
†Ophiomys meadensis Hibbard 1956
†Ophiomys parvus Wilson 1933
G. †Pliophenacomys Hibbard 1950
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†Pliophenacomys finneyi Hibbard and Zakrzewski 1972
†Pliophenacomys osborni Martin 1972
†Pliophenacomys primaevus Hibbard 1937
G. †Predicrostonyx Guthrie and Matthews, Jr. 1971
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†Predicrostonyx hopkinsi Guthrie and Matthews, Jr. 1971
G. †Synaptomys Baird 1858
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†Synaptomys anzaensis Zakrzewski 1972
†Synaptomys australis Simpson 1928
Synaptomys borealis Richardson 1828 [northern bog lemming]
†Synaptomys bunkeri Hibbard 1939
Synaptomys cooperi Baird 1858 [southern bog lemming]
†Synaptomys kansasensis Hibbard 1952
†Synaptomys landesi Hibbard 1954
†Synaptomys meltoni Paulson 1961
†Synaptomys rinkeri Hibbard 1956
†Synaptomys vetus Wilson 1933
Invalid names: Mictomys True 1894 [synonym]
Fm. Erethizontidae Bonaparte 1845 [porcupine]
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G. Coendou Lacépède 1799 [prehensile-tailed porcupine]
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†Coendou bathygnathum Wilson 1935
†Coendou cumberlandicus White 1970
†Coendou stirtoni White 1968
G. Erethizon Cuvier 1822 [North American porcupine]
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Erethizon dorsatum Linnaeus 1758 [North American porcupine]
Fm. Geomyidae Bonaparte 1845 [pocket gopher]
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G. Cratogeomys Merriam 1895 [pocket gopher]
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†Cratogeomys bensoni Gidley 1922
Cratogeomys castanops Baird 1852 [yellow-faced pocket gopher]
G. Geomys Rafinesque 1817
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†Geomys adamsi Hibbard 1967
Geomys bursarius Shaw 1800 [plains pocket gopher]
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Invalid names: Geomys bisulcatus Marsh 1871 [synonym], Geomys parvidens Gidley 1922 [synonym]
†Geomys garbanii White and Downs 1961
Geomys pinetis Rafinesque 1817 [southeastern pocket gopher]
†Geomys quinni McGrew 1944
†Geomys tobinensis Hibbard 1944
G. †Nerterogeomys Gazin 1942
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†Nerterogeomys minor Gidley 1922
†Nerterogeomys paenebursarius Strain 1966
†Nerterogeomys persimilis Hay 1927
†Nerterogeomys smithi Hibbard 1967
G. Thomomys Wied-Neuwied 1839
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Thomomys bottae Eydoux and Gervais 1836 [Botta's pocket gopher]
†Thomomys gidleyi Wilson 1933
†Thomomys microdon Sinclair 1905 [pocket gopher]
†Thomomys orientalis Simpson 1928
†Thomomys potomacensis Gidley and Gazin 1933
Thomomys talpoides Richardson 1828 [northern pocket gopher]
Thomomys townsendii Bachman 1839 [Townsend's pocket gopher]
Thomomys umbrinus Richardson 1829 [southern pocket gopher]
Fm. Heteromyidae Gray 1868
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Subfm. Heteromyinae Gray 1868
Subfm. Perognathinae Coues 1875
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G. Perognathus Maximillian 1839 [pocket mouse]
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Perognathus apache Merriam 1889
Perognathus californicus Merriam 1889 [California pocket mouse]
Perognathus flavus Baird 1855
†Perognathus gidleyi Hibbard 1941
Perognathus hispidus Baird 1858 [hispid pocket mouse]
Perognathus inornatus Merriam 1889
Perognathus intermedius Merriam 1889 [rock pocket mouse]
Perognathus longimembris Coues 1875
†Perognathus magnus Zakrzewski 1969
Perognathus parvus Peale 1848 [Oregon pocket mouse]
†Perognathus pearlettensis Hibbard 1941
†Perognathus rexroadensis Hibbard 1950
Invalid names: Dipodomyinae [empty]
Fm. Hydrochoeridae Gill 1872
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Fm. Sciuridae Gray 1821 [squirrel]
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G. Ammospermophilus Merriam 1892 [antelope squirrel]
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Ammospermophilus leucurus Merriam 1889 [white-tailed antelope squirrel]
G. Cynomys Rafinesque 1817 [prairie dog]
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Cynomys gunnisoni Baird 1855 [Gunnison's prairie dog]
†Cynomys hibbardi Eshelman 1975
Cynomys leucurus Merriam 1890 [white-tailed prairie dog]
Cynomys ludovicianus Ord 1815 [black-tailed prairie dog]
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Invalid names: Cynomys meadensis Hibbard 1956 [synonym]
†Cynomys niobrarius Hay 1921
†Cynomys vetus Hibbbard 1942
G. Glaucomys Thomas 1908 [flying squirrel]
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Glaucomys sabrinus Shaw 1801 [northern flying squirrel]
Glaucomys volans Linnaeus 1758 [southern flying squirrel]
G. Marmota Frisch 1775 [marmot]
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†Marmota arizonae Hay 1921
Marmota flaviventris Audubon and Bachman 1841 [yellow-bellied marmot]
Marmota monax Linnaeus 1758 [groundhog]
G. †Paenemarmota Hibbard and Schultz 1948
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†Paenemarmota barbouri Hibbard and Schultz 1948
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Invalid names: Marmota mexicana Wilson 1949 [synonym]
G. Sciurus Linnaeus 1758 [squirrel]
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Sciurus alleni Nelson 1898
Sciurus arizonensis Coues 1867
Sciurus carolinensis Gmelin 1788 [eastern gray squirrel]
Sciurus niger Linnaeus 1758 [fox squirrel]
G. Spermophilus Cuvier 1825 [ground squirrel]
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Spermophilus armatus Kennicott 1863
Spermophilus beecheyi Richardson 1823 [California ground squirrel]
†Spermophilus bensoni Gidley 1922
†Spermophilus boothi Hibbard 1972
†Spermophilus cochisei Gidley 1922
Spermophilus columbianus Ord 1815 [Columbian ground squirrel]
†Spermophilus cragini Hibbard 1941
†Spermophilus finlayensis Strain 1966
Spermophilus franklinii Sabine 1822
†Spermophilus howelli Hibbard 1941
†Spermophilus johnsoni Hibbard 1972
Spermophilus lateralis Say 1823 [golden-mantled ground squirrel]
†Spermophilus magheei Strain 1966
†Spermophilus meadensis Hibbard 1941
Spermophilus mexicanus Erxleben 1877
Spermophilus parryii Richardson 1825 [arctic ground squirrel]
†Spermophilus rexroadensis Hibbard 1941
Spermophilus richardsonii Sabine 1822
Spermophilus spilosoma Bennett 1833 [spotted ground squirrel]
†Spermophilus taylori Hay 1921
Spermophilus tridecemlineatus Mitchell 1821 [thirteen-lined ground squirrel]
†Spermophilus tuitus Hay 1921
Spermophilus variegatus Erxleben 1777 [rock squirrel]
G. Tamias Illinger 1811 [chipmunk]
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†Tamias aristus Ray 1965
Tamias striatus Linnaeus 1758 [eastern chipmunk]
G. Tamiasciurus Trouessart 1880
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Tamiasciurus douglasii Bachman 1839 [Douglas squirrel]
Tamiasciurus hudsonicus Erxleben 1777 [American red squirrel]
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Invalid names: Sciurus tenuidens Hay 1920 [synonym]
Fm. Zapodidae Coues 1875 [jumping mouse]
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G. Zapus Coues 1876
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†Zapus burti Hibbard 1941
Zapus hudsonius Zimmermann 1780 [meadow jumping mouse]
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Invalid names: Zapus adamsi Hibbard 1955 [synonym]
Zapus princeps Allen 1893
†Zapus rinkeri Hibbard 1951
†Zapus sandersi Hibbard 1956
Or. Lagomorpha Brandt 1885
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Fm. Leporidae Fischer de Waldheim 1817 [rabbit]
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Subfm. †Archaeolaginae
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G. †Hypolagus Dice 1917
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†Hypolagus arizonensis Downey 1962
†Hypolagus browni Hay 1921
†Hypolagus furlongi Gazin 1934
†Hypolagus limnetus Gazin 1934
†Hypolagus regalis Hibbard 1939
†Hypolagus vetus Kellogg 1910
Subfm. †Leporinae Trouessart 1880
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G. Lepus Linnaeus 1758 [hare]
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Lepus alleni Mearns 1890 [antelope jackrabbit]
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Invalid names: Lepus giganteus Brown 1908 [synonym]
Lepus americanus Erxleben 1777 [snowshoe hare]
Lepus arcticus Ross 1819
†Lepus benjamini Hay 1921
Lepus californicus Gray 1837 [black-tailed jackrabbit]
Lepus townsendii Bachman 1839 [white-tailed jackrabbit]
G. †Nekrolagus Hibbard 1939
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†Nekrolagus progressus Hibbard 1939
Invalid names: Pediolagus Hibbard 1939 [synonym]
G. Sylvilagus Gray 1867 [cottontail rabbit]
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Sylvilagus aquaticus Bachman 1837 [swamp rabbit]
Sylvilagus audubonii Baird 1858 [desert cottontail]
Sylvilagus bachmani Waterhouse 1839
Sylvilagus floridanus Allen 1890 [eastern cottontail]
Sylvilagus nuttalli Bachman 1837 [mountain cottontail]
Sylvilagus palustris Bachman 1837 [marsh rabbit]
Sylvilagus transitionalis Bangs 1895
Fm. Ochotonidae Thomas 1897 [pika]
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G. Ochotona Link 1795 [pika]
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Ochotona collaris Nelson 1893
Ochotona princeps Richardson 1828 [American pika]
†Ochotona whartoni Guthrie and Matthews, Jr. 1971
Invalid names: Praotherium palatinum Cope 1871 [nomen dubium]
Or. Artiodactyla Owen 1848 [even-toed ungulate]
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Fm. Antilocapridae Gray 1866 [pronghorn]
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G. Antilocapra Ord 1818 [pronghorn]
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G. †Capromeryx Matthew 1902
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†Capromeryx arizonensis Skinner 1942
†Capromeryx gidleyi Frick 1937
†Capromeryx mexicana Furlong 1925
†Capromeryx minor Taylor 1911
Invalid names: Breameryx Furlong 1946 [synonym]
G. †Stockoceros Skinner 1942
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†Stockoceros conklingi Stock 1930
†Stockoceros onusrosagris Roosevelt and Burden 1934
G. †Tetrameryx Lull 1921
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†Tetrameryx irvingtonensis Stirton 1939
†Tetrameryx knoxensis Hibbard and Dalquest 1960
†Tetrameryx mooseri Dalquest 1974
†Tetrameryx tacubayensis Mooser and Dalquest 1975
Fm. Bovidae Gray 1821 [antelope]
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Subfm. Bovinae Gray 1821
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G. Bison Hamilton-Smith 1827 [bison]
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Bison bison Linnaeus 1758 [American bison]
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Invalid names: Bison antiquus Leidy 1852 [synonym], Bison californicus Rhoads 1897 [synonym], Bison figginsi Hay and Cook 1928 [synonym], Bison kansensis McClung 1905 [synonym], Bison occidentalis Lucas 1898 [synonym], Bison oliverhayi Figgins 1933 [synonym], Bison pacificus Hay 1927 [synonym], Bison taylori Hay and Cook 1928 [synonym], Bison texanus Hay and Cook 1928 [synonym]
†Bison latifrons Harlan 1825
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Invalid names: Bison aguascalentensis Mooser and Dalquest 1975 [synonym], Bison alleni Marsh 1877 [synonym], Bison angularis Figgins 1933 [synonym], Bison chaneyi Cook 1928 [synonym], Bison ferox Marsh 1877 [synonym], Bison regius Hay 1913 [synonym], Bison rotundus Figgins 1933 [synonym], Bison willistoni Martin 1924 [synonym], Bos arizonica Blake 1898 [synonym], Bos crampianus Cope 1894 [synonym]
†Bison priscus Bojanus 1827
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Invalid names: Bison alaskensis Rhoads 1897 [synonym], Bison crassicornis Richardson 1854 [synonym], Bison geisti Skinner and Kaisen 1947 [synonym], Bison praeoccidentalis Skinner and Kaisen 1947 [synonym]
G. Bos Linnaeus 1758 [ox]
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Subfm. Caprinae Gray 1821
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G. †Euceratherium Furlong and Sinclair 1904 [shrub-ox]
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†Euceratherium collinum Furlong and Sinclair 1904 [shrub ox]
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Invalid names: Aftonius calvini Hay 1913 [synonym], Euceratherium bizzelli Stovall 1937 [synonym], Preptoceras sinclairi Furlong 1905 [synonym], Taurotragus americanus Gidley 1913 [synonym]
G. Oreamnos Rafinesque 1817 [mountain goat]
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Oreamnos americanus Blainville 1816
†Oreamnos harringtoni Stock 1936
G. Ovibos Blainville 1816 [muskox]
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Ovibos moschatus Zimmermann 1780 [muskox]
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Invalid names: Ovibos proximus Bensley 1923 [synonym], Ovibos yukonensis Gidley 1908 [synonym]
G. Ovis Linnaeus 1758 [sheep]
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Ovis canadensis Shaw 1804 [bighorn sheep]
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Invalid names: Ovis catclawensis Hibbard and Wright 1956 [synonym]
Ovis dalli Nelson 1884 [Dall sheep]
G. Saiga Gray 1843 [saiga]
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G. †Soergelia Schaub 1951
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G. †Symbos Osgood 1905
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†Symbos cavifrons Leidy 1852
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Invalid names: Bison appalachicolus Rhoads 1895 [synonym], Bootherium brazosis Hesse 1942 [synonym], Bootherium nivicolens Hay 1915 [synonym], Bootherium sargenti Gidley 1908 [synonym], Liops zuniensis Gidley 1906 [synonym], Ovibos giganteus Frick 1937 [synonym], Scaphoceros tyrelli Osgood 1905 [synonym], Symbos australis Brown 1908 [synonym], Symbos convexifrons Barbour 1934 [synonym], Symbos promptus Hay 1920 [synonym]
Fm. Camelidae Gray 1821 [camel]
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G. †Camelops Leidy 1854
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†Camelops hesternus Leidy 1873
†Camelops huerfanensis Cragin 1892
†Camelops kansanus Leidy 1854
†Camelops minidokae Hay 1927
†Camelops sulcatus Cope 1893
†Camelops traviswhitei Mooser and Dalquest 1975
G. †Hemiauchenia Gervais and Ameghino 1880
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†Hemiauchenia blancoensis Meade 1945
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Invalid names: Tanupolama seymourensis Hibbard and Dalquest 1962 [synonym]
†Hemiauchenia macrocephala Cope 1893
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Invalid names: Camelus americanus Wortman 1898 [synonym], Lama hollomani Hay and Cook 1930 [synonym], Lama stevensi Merriam and Stock 1925 [synonym]
G. †Titanotylopus Barbour and Schultz 1934
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†Titanotylopus nebraskensis Barbour and Schultz 1934
†Titanotylopus spatulus Cope 1893
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Invalid names: Gigantocamelus fricki Barbour and Schultz 1939 [synonym]
Invalid names: Gigantocamelus Barbour and Schultz 1939 [synonym]
Fm. Cervidae Gray 1821 [deer]
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Subfm. Cervinae Goldfuss 1820
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G. Cervus Linnaeus 1758
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Cervus elaphus Linnaeus 1758 [red deer]
Invalid names: Cervus aguangae Frick 1937 [nomen dubium], Cervus fortisi Cope 1878 [nomen dubium], Cervus lucasi Hay 1927 [nomen dubium]
Subfm. Odocoileinae Pocock 1923 [New World deer]
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G. †Cervalces Scott 1885 [stag moose]
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†Cervalces scotti Lydekker 1898
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Invalid names: Cervalces borealis Bensley 1913 [synonym], Cervalces roosevelti Hay 1913 [synonym]
G. †Navahoceros Kurten 1975
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†Navahoceros fricki Schultz and Howard 1935
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Invalid names: Cervus lascrucensis Frick 1937 [synonym], Odocoileus halli Alvarez 1969 [synonym]
G. Odocoileus Rafinesque 1832
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†Odocoileus brachydontus Oelrich 1953
Odocoileus hemionus Rafinesque 1817 [mule deer]
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Invalid names: Cariacus ensifer Cope 1889 [synonym], Odocoileus cascensis Frick 1937 [synonym]
Odocoileus virginianus Zimmermann 1780 [white-tailed deer]
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Invalid names: Odocoileus cooki Frick 1937 [synonym], Odocoileus sheridanus Frick 1937 [synonym]
G. Rangifer Hamilton-Smith 1827 [reindeer]
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Rangifer tarandus Linnaeus 1758 [reindeer]
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Invalid names: Rangifer muscatinensis Leidy 1879 [synonym]
G. †Sangamona Hay 1920
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Fm. Tayassuidae Palmer 1897 [peccary]
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G. †Mylohyus Cope 1869
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†Mylohyus nasutus Leidy 1868
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Invalid names: Dicotyles fossilis Leidy 1860 [synonym], Dicotyles pennsylvanicus Leidy 1889 [synonym], Mylohyus browni Gidley 1920 [synonym], Mylohyus exortivus Gidley 1920 [synonym], Mylohyus gidleyi Simpson 1929 [synonym], Mylohyus tetragonus Cope 1899 [synonym]
G. †Platygonus Leconte 1848
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†Platygonus compressus Leconte 1848
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Invalid names: Platygonus leptorhinus Williston 1894 [synonym]
†Platygonus intermedius Gidley 1920
†Platygonus pearcei Gazin 1938
†Platygonus vetus Leidy 1882
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Invalid names: Platygonus cumberlandensis Gidley 1920 [synonym], Platygonus intermediatus Gidley 1921 [synonym]
Or. Perissodactyla Owen 1848 [odd-toed ungulate]
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Fm. Equidae Gray 1821 [horse]
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G. Equus Linnaeus 1758 [horse]
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†Equus calobatus Troxell 1915
†Equus complicatus Leidy 1858
†Equus crinidens Cope 1884
†Equus cumminsii Cope 1893
†Equus excelsus Leidy 1858
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Invalid names: Asinus aguascalentensis Mooser 1959 [synonym], Onager arellanoi Mooser 1959 [synonym], Onager hibbardi Mooser 1959 [synonym]
†Equus fraternus Leidy 1858
†Equus lambei Hay 1917
†Equus pacificus Leidy 1868
†Equus parastylidens Mooser 1959
†Equus pectinatus Cope 1901
†Equus simplicidens Cope 1892
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Invalid names: Equus idahoensis Merriam 1918 [synonym], Plesippus shoshonensis Gidley 1930 [synonym], Pliohippus francescana Frick 1921 [synonym], Pliohippus proversus Merriam 1916 [synonym]
†Equus tau Owen 1869
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Invalid names: Equus achates Hay and Cook 1930 [synonym], Equus francisci Hay 1915 [synonym], Equus littoralis Hay 1913 [synonym], Equus quinni Slaughter et al. 1962 [synonym]
Invalid names: Dolichohippus Heller 1912 [synonym], Plesippus Matthew 1924 [synonym]
G. †Nannippus Matthew 1926
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†Nannippus beckensis Dalquest and Donovan 1973
†Nannippus phlegon Hay 1899
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Invalid names: Equus minutus Cope 1893 [synonym], Hipparion cragini Hay 1917 [synonym]
Fm. Tapiridae Gray 1821 [tapir]
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G. Tapirus Brisson 1762 [tapir]
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†Tapirus californicus Merriam 1912
†Tapirus merriami Frick 1921
†Tapirus veroensis Sellards 1918
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Invalid names: Tapirus excelsus Simpson 1945 [synonym], Tapirus tennesseae Hay 1920 [synonym]
Equus caballus Linnaeus 1758 [horse]
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Invalid names: Equus laurentius Hay 1913 [synonym]
Or. Edentata Cuvier 1798
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Fm. Dasypodidae Gray 1821 [armadillo]
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Subfm. †Dasypodinae Gray 1821
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G. Dasypus Linnaeus 1758
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†Dasypus bellus Simpson 1929 [beautiful armadillo]
Dasypus novemcinctus Linnaeus 1758 [nine-banded armadillo]
Invalid names: Pampatheriinae Paula Couto 1954 [empty]
Fm. †Glyptodontidae Burmeister 1879 [glyptodon]
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G. †Glyptotherium Osborn 1903
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†Glyptotherium arizonae Gidley 1926
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Invalid names: Xenoglyptodon fredericensis Meade 1953 [synonym]
†Glyptotherium floridanum Simpson 1929 [Florida glyptodont]
†Glyptotherium mexicanum Cuataparo and Ramirez 1875
†Glyptotherium texanum Osborn 1903
Invalid names: Boreostracon Simpson 1929 [synonym]
Fm. †Megalonychidae Gervais 1855
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G. †Megalonyx Harlan 1825
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†Megalonyx jeffersonii Desmarest 1822 [Jefferson's ground sloth]
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Invalid names: Megalonyx brachycephalus Sellards 1941 [synonym], Megalonyx californicus Stock 1913 [synonym], Megalonyx dissimilis Leidy 1855 [synonym], Megalonyx hogani Stovall 1940 [synonym], Megalonyx laqueatus Harlan 1831 [synonym], Megalonyx leidyi Lindahl 1892 [synonym], Megalonyx milleri Lyon 1938 [synonym], Megalonyx sierrensis Sinclair 1905 [synonym]
†Megalonyx wheatleyi Cope 1871
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Invalid names: Megalonyx loxodon Cope 1871 [synonym], Megalonyx scalper Cope 1899 [synonym], Megalonyx sphenodon Cope 1871 [synonym], Megalonyx tortulus Cope 1871 [synonym]
Fm. †Megatheriidae Gray 1821
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G. †Eremotherium Spillmann 1948
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†Eremotherium rusconii Schaub 1935
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Invalid names: Eremotherium carolinense Spillmann 1948 [synonym], Megatherium mirabile Leidy 1855 [synonym]
G. †Nothrotheriops Hoffstetter 1954
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†Nothrotheriops shastensis Sinclair 1905 [Shasta ground sloth]
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Invalid names: Nothrotherium graciliceps Stock 1913 [synonym], Nothrotherium texanum Hay 1916 [synonym]
Fm. †Mylodontidae Ameghino 1889
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G. †Glossotherium Owen 1840
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†Glossotherium chapadmalense Kraglievich 1925
†Glossotherium harlani Owen 1840 [Harlan's ground sloth]
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Invalid names: Mylodon garmani Allen 1913 [synonym], Mylodon renidens Cope 1895 [synonym], Mylodon sodalis Cope 1878 [synonym], Mylodon sulcidens Cope 1895 [synonym], Paramylodon nebrascensis Brown 1903 [synonym]
Invalid names: Mylodon Owen 1859 [synonym], Paramylodon Brown 1903 [synonym]
Or. Sirenia Illiger 1811 [sirenian]
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Fm. Dugongidae Gray 1821 [dugong]
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G. †Hydrodamalis Retzius 1794 [Steller's sea cow]
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†Hydrodamalis gigas Zimmermann 1780 [Steller's sea cow]
Fm. Trichechidae Gray 1821 [manatee]
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Or. Proboscidea Illiger 1811 [proboscidean]
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Fm. Elephantidae Gray 1821 [elephant]
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G. †Mammuthus Brookes 1828 [mammoth]
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†Mammuthus columbi Falconer 1857 [Columbian mammoth]
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Invalid names: Archidiskodon sonoriensis Osborn 1929 [synonym], Elephas (Euelephas) imperator Leidy 1858 [synonym], Elephas imperator Leidy 1858 [synonym], Elephas maibeni Barbour 1925 [synonym]
†Mammuthus jeffersonii Osborn 1922
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Invalid names: Elephas eellsi Hay 1926 [synonym], Elephas exilis Maglio 1970 [synonym], Elephas floridanus Osborn 1929 [synonym], Elephas roosevelti Hay 1922 [synonym], Elephas washingtonii Osborn 1923 [synonym], Parelephas progressus Osborn 1942 [synonym]
†Mammuthus meridionalis Nesti 1825
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Invalid names: Archidiskodon haroldcooki Hay 1928 [synonym], Archidiskodon hayi Barbour 1915 [synonym], Archidiskodon nebrascensis Osborn 1932 [synonym], Archidiskodon scotti Barbour 1925 [synonym], Elephas haroldcooki Hay 1928 [synonym]
†Mammuthus primigenius Blumenbach 1799 [wooly mammoth]
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Invalid names: Elephas americanus De Kay 1842 [synonym], Elephas jacksoni Mather 1838 [synonym]
Invalid names: Archidiskodon Pohling 1888 [synonym], Parelephas Osborn 1924 [synonym]
Fm. †Gomphotheriidae Hay 1922 [gomphothere]
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G. †Cuvieronius Osborn 1923
G. †Rhynchotherium Falconer 1868
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†Rhynchotherium praecursor Cope 1893
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Invalid names: Mastodon shepardii Leidy 1870 [synonym], Rhynchotherium falconeri Osborn 1923 [synonym]
G. †Stegomastodon Pohlig 1912
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†Stegomastodon mirificus Leidy 1858
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Invalid names: Anancus bensonensis Gidley 1926 [synonym], Mastodon successor Cope 1892 [synonym], Stegomastodon arizonae Gidley 1926 [synonym], Stegomastodon primitivus Osborn 1936 [synonym], Stegomastodon rexroadensis Woodburne 1961 [synonym], Stegomastodon texanus Osborn 1924 [synonym]
Fm. †Mammutidae Hay 1922 [mastodon]
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G. †Mammut Blumenbach 1799 [mastodon]
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†Mammut americanum Kerr 1792 [American mastodon]
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Invalid names: Mammut progenium Hay 1914 [synonym], Mastodon giganteus Cuvier 1817 [synonym]
Invalid names: Mastodon Cuvier 1817 [synonym]
Or. Marsupialia Illiger 1811 [marsupial]
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Fm. Didelphidae Gray 1821 [opossum]
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G. Didelphis Linnaeus 1758 [large American opossum]
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Didelphis virginiana Kerr 1792 [Virginia opossum]