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Myodonta

Osteichthyes - Rodentia

Taxonomy
Myodonta was named by Schaub (1958). It is extant.

It was assigned to Rodentia by Montgelard et al. (2002); and to Myomorpha by Walsh (2010).

Synonymy list
YearName and author
1958Myodonta Schaub
2002Myodonta Montgelard et al. p. 230
2010Myodonta Walsh p. 1611

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
RankNameAuthor
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—EuarchontogliresMurphy et al. 2001
—GliriformesWyss and Meng 1996
—Glires()
—Simplicidentata()
orderRodentiaBowdich 1821
infraorderMyodontaSchaub 1958
infraorderMyodontaSchaub 1958

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Infraor. Myodonta Schaub 1958
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Superfm. Dipodoidea Fischer 1817
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Fm. Dipodidae Waterhouse 1842
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G. Allactaga Cuvier 1836 [jerboa]
+
†Allactaga fru Nesin and Kovalchuk 2017
Invalid names: Mus longipes Linnaeus 1758 [nomen dubium]
G. †Allosminthus Wang 1985
+
†Allosminthus ernos Wang 1985
†Allosminthus khandae Daxner-Höck 2001
Invalid names: Tatalsminthus Daxner-Höck 2001 [synonym]
G. †Bohlinosminthus Lopatin 1999
+
†Bohlinosminthus cubitalus Lopatin 1999
†Bohlinosminthus parvulus Bohlin 1946
†Bohlinosminthus quartus Shevyreva 1970
G. †Brachyscirtetes Schaub 1934
+
†Brachyscirtetes robustus Savinov 1970
†Brachyscirtetes wimani Schlosser 1924
G. Dipus Zimmermann 1780
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Dipus sagitta Pallas 1773 [northern three-toed jerboa]
G. †Heosminthus Wang 1985
+
†Heosminthus borrae Daxner-Höck et al. 2014
†Heosminthus chimidae Daxner-Höck et al. 2014
†Heosminthus minutus Daxner-Höck 2001
†Heosminthus nomogenesis Li et al. 2016
†Heosminthus teredens Calede et al. 2022
†Heosminthus verus Wang 1985
G. Jaculus Erxleben 1777 [jerboa]
+
Jaculus blanfordi Murray 1884 [Blanford's jerboa]
Jaculus gordoni Thomas 1911
Jaculus jaculus Linnaeus 1758 [lesser Egyptian jerboa]
G. †Litodonomys Wang and Qiu 2000
+
†Litodonomys huangheensis Wang and Qiu 2000
†Litodonomys lajeensis Li and Qiu 1980
Subfm. †Lophocricetinae Savinov 1970
+
G. †Heterosminthus Schaub 1930
+
†Heterosminthus firmus Zazhigin and Lopatin 2000
†Heterosminthus gansus Zheng 1982
†Heterosminthus lanzhouensis Wang and Qiu 2000
†Heterosminthus minutus Daxner-Höck 2001
†Heterosminthus mongoliensis Zazhigin and Lopatin 2000
G. †Lophocricetus Schlosser 1924
+
†Lophocricetus grabaui Schlosser 1924
†Lophocricetus pusillus Schaub 1934
G. †Onjosminthus Daxner-Höck et al. 2014
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†Onjosminthus baindi Daxner-Höck et al. 2014
G. †Paralactaga Young 1927
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†Paralactaga anderssoni Young 1927
†Paralactaga suni Teilhard de Jardin and Young 1927
G. †Parasminthus Bohlin 1946
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†Parasminthus debruijni Lopatin 1999
†Parasminthus tangingoli Bohlin 1946
G. †Proalactaga Savinov 1970
G. †Protalactaga Young 1929
+
†Protalactaga sefriouii Benammi 1997
G. Pygeretmus Gloger 1841 [fat-tailed jerboa]
G. Salpingotus Vinogradov 1922 [pygmy jerboa]
G. †Sinosminthus Wang 1985
G. †Sinozapus Qiu and Storch 2000
+
†Sinozapus volkeri Qiu and Storch 2000
G. †Sminthoides Schlosser 1924
+
†Sminthoides fraudator Schlosser 1924
G. Stylodipus Allen 1925 [three-toed jerboa]
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†Stylodipus perfectus Zazhigin and Lopatin 2001
Fm. †Simimyidae Wood 1980
+
G. †Simimys Wilson 1935
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†Simimys landeri Kelly 1992
†Simimys simplex Wilson 1935
+
Invalid names: Eumysops vetus Wilson 1935 [synonym], Simimys murinus Wilson 1949 [synonym]
Invalid names: Eumysops Wilson 1935 [replaced]
Fm. Zapodidae Coues 1875 [jumping mouse]
+
G. †Aksyiromys Shevyreva 1984
+
†Aksyiromys dalos Shevyreva 1984
G. †Banyuesminthus Tong 1997
G. †Elymys Korth and Emry 1989
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†Elymys complexus Korth and Emry 1989
G. Eozapus Preble 1899
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Eozapus setchuanus Pousargues 1986
†Eozapus similis Fahlbusch 1992
Invalid names: Protozapus Bachmayer and Wilson 1970 [synonym]
G. †Gobiosminthus Huang 1992
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†Gobiosminthus lajeensis Li and Qiu 1980
†Gobiosminthus qiui Huang 1992
G. †Javazapus Martin 1989
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†Javazapus weeksi Martin 1989
G. †Macrognathomys Hall 1930
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†Macrognathomys nanus Hall 1930
G. †Megasminthus Klingener 1966
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†Megasminthus gladiofex Green 1977
†Megasminthus tiheni Klingener 1966
G. †Miosicista Korth 1993
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†Miosicista angulus Korth 1993
G. †Napaeozapus Miller 1900
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Napaeozapus insignis Miller 1891 [woodland jumping mouse]
G. †Pliozapus Wilson 1936
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†Pliozapus solus Wilson 1936
G. †Primisminthus Tong 1997
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†Primisminthus jinus Tong 1997
†Primisminthus yuenus Tong 1997
G. †Schaubeumys Wood 1935
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†Schaubeumys cartomylos Korth 1987
†Schaubeumys clivosus Galbreath 1953
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Invalid names: Plesiosminthus geringensis Martin 1974 [synonym]
†Schaubeumys galbreathi Wilson 1960
†Schaubeumys grangeri Wood 1935
†Schaubeumys sabrae Black 1958
G. †Shamosminthus Huang 1992
+
†Shamosminthus sodovis Daxner-Höck 2001
†Shamosminthus tongi Huang 1992
†Shamosminthus xiningensis Li and Qiu 1980
G. Sicista Gray 1827 [birch mouse]
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†Sicista praeloriger Kormos 1930
Sicista subtilis Pallas 1773 [southern birch mouse]
†Sicista wangi Qiu and Storch 2000
Subfm. †Sicistinae Allen 1901
+
G. †Plesiosminthus Viret 1926
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†Plesiosminthus asiaticus Daxner-Höck and Wu 2003
†Plesiosminthus barsboldi Daxner-Höck and Wu 2003
†Plesiosminthus bavaricus Freudenberg 1941
†Plesiosminthus conjunctus Ziegler 1994
†Plesiosminthus fremdi Korth and Samuels 2015
†Plesiosminthus huangshuiensis Li and Qiu 1980
†Plesiosminthus margaritae Freudenthal and Martín-Suárez 2017
†Plesiosminthus moniqueae Freudenthal and Martín-Suárez 2017
†Plesiosminthus moralesi Alvarez Sierra et al. 1996
†Plesiosminthus myarion Schaub 1930
†Plesiosminthus olzi Daxner-Höck et al. 2014
†Plesiosminthus schaubi Viret 1926
†Plesiosminthus xiningensis Li and Qiu 1980
G. †Simiacritomys Kelly 1992
+
G. †Sminthozapus Sulimski 1962
G. †Tyrannomys Martin 1989
+
†Tyrannomys harkseni Martin 1989
G. Zapus Coues 1876
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†Zapus adamsi Hibbard 1955
†Zapus burti Hibbard 1941
Zapus hudsonius Zimmermann 1780 [meadow jumping mouse]
Zapus princeps Allen 1893
†Zapus rinkeri Hibbard 1951
†Zapus sandersi Hibbard 1956
†Zapus sykesae Martin 1989
Invalid names: Sminthidae Brandt 1855 [empty]
G. †Erlianomys Li and Meng 2010
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†Erlianomys combinatus Li and Meng 2010
Superfm. Muroidea Illiger 1811 [mouse]
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Unr. Eumuroida Steppan et al. 2004
+
+
G. Calomyscus Thomas 1905
+
†Calomyscus delicatus Aguilar et al. 1984
†Calomyscus minor de Bruijn et al. 1970
Fm. Muridae Illiger 1811 [mouse]
+
G. †Abditomys Musser 1982
Subfm. †Afrocricetodontinae Lavocat 1973
+
G. †Afrocricetodon Lavocat 1973
G. †Allorattus Qiu and Storch 2000
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†Allorattus engesseri Qiu and Storch 2000
G. †Anthracomys Schaub 1938
G. Apodemus Kaup 1829 [Eurasian field mouse]
+
Apodemus agrarius Pallas 1771
†Apodemus gudrunae van de Weerd 1976
†Apodemus lii Qiu and Storch 2000
Apodemus mystacinus Danford and Alston 1877 [Eastern broad-toothed field mouse]
G. Apomys Mearns 1905
+
Apomys hylocoetes Mearns 1905
Apomys insignis Mearns 1905
Apomys petraeus Mearns 1905
G. Arvicanthis Lesson 1842 [grass rat]
+
†Arvicanthis broekhuisi Hordijk and de Bruijn 2009
Arvicanthis dunni Thomas 1911
Arvicanthis micropus Thomas and Wroughton 1910
Arvicanthis striatus Linnaeus 1758 [typical striped grass mouse]
G. Bullimus Mearns 1905
+
Bullimus bagobus Mearns 1905
G. †Castillomys Michaux 1969
+
†Castillomys crusafonti Michaux 1969
†Castillomys gracilis van de Weerd 1976
†Castillomys margaritae Antunes and Mein 1989
†Castillomys rivas Martín Suárez and Mein 1991
G. †Castromys Martin Suarez and Freudenthal 1994
+
†Castromys inflatus Mein et al. 1990
†Castromys juniensis Padial Ojeda and Ruiz Bustos 1989
†Castromys littoralis Martin Suarez and Freudenthal 1994
G. †Centralomys de Guili 1989
+
†Centralomys benericettii de Guili 1989
†Centralomys magnus Sen 1977
G. Chiropodomys Peters 1868 [pencil-tailed tree mouse]
G. Colomys Thomas and Wroughton 1907 [African wading rat]
+
Colomys goslingi Thomas and Wroughton 1907
G. Dasymys Peters 1875
+
Dasymys bentleyae Thomas 1892
Subfm. Deomyinae
+
G. Acomys Geoffroy 1838 [(African) spiny mice]
G. Deomys Thomas 1888
G. Lophuromys Peters 1874
G. Uromys Peters 1867
Tr. Echymina Gray 1825
+
G. Heteromys Desmarest 1817 [forest spiny pocket mouse]
G. †Extrarius Erten 2017
+
†Extrarius orhuni Erten 2017
Subfm. Gerbillinae Gray 1825 [gerbil]
+
G. †Epimeriones Daxner-Höck 1972
G. Gerbillurus Shortridge 1942
G. Gerbillus Desmarest 1804
G. Meriones Illiger 1811 [jird]
G. †Pseudomeriones Schaub 1934
G. Tatera Lataste 1882 [large naked-soled gerbil]
G. Gerbua Cuvier 1825
G. Grammomys Thomas 1915
+
Grammomys centralis Dollman 1914
Grammomys macmillani Wroughton 1907
G. Hapalomys Blyth 1859 [marmoset rat]
G. †Huaxiamys Wu and Flynn 1992
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†Huaxiamys downsi Wu and Flynn 1992
G. †Huerzelerimys Mein et al. 1993
+
†Huerzelerimys minor Mein et al. 1993
†Huerzelerimys oreopitheci Engesser 1989
†Huerzelerimys turoliensis Michaux 1969
†Huerzelerimys vireti Schaub 1938
Tr. Hydromina Gray 1825
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G. Hydromys Geoffroy 1804
G. Hyomys Thomas 1904 [white-eared giant rat]
G. †Karnimata Jacobs 1978
G. †Kritimys Kuss and Misonne 1968
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†Kritimys catreus Bate 1912
†Kritimys kiridus Bate 1942
G. Lemniscomys Trouessart 1881 [striped grass mouse]
G. Limnomys Mearns 1905
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Limnomys sibuanus Mearns 1905
G. Mastacomys Thomas 1882 [broad-toothed rat]
G. Micromys Dehne 1841 [harvest mouse]
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†Micromys bendai van de Weerd 1979
+
Invalid names: Micromys kozaniensis van de Weerd 1979 [synonym]
†Micromys steffensi van de Weerd 1979
G. †Mikrotia Freudenthal 2006
+
Invalid names: Microtia Freudenthal 1976 [replaced]
Fm. Murina Illiger 1811
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G. Otomys Cuvier 1824
Subfm. Murinae
+
G. †Antemus Jacobs 1977
G. Leopoldamys Ellerman 1947
G. †Leporillus Thomas 1906
G. Maxomys Sody 1936
G. Melomys Thomas 1922
G. Mus Linnaeus 1758 [house mouse]
+
Invalid names: Leggada Gray 1837 [synonym]
G. Myomys Thomas 1906
G. Niviventer Marschall 1976
G. Notomys Lesson 1842 [hopping mouse]
G. †Potwarmus Lindsey 1988
Tr. Rattini Burnett 1830
G. Rattus Fischer 1803 [rat]
+
Invalid names: Epimys Trouessart 1881 [synonym]
G. Saxatilomys Musser et al. 2005
G. Sundamys Musser and Newcombe 1983
G. Tonkinomys Musser et al. 2006
Invalid names: Otomyini [empty]
Subfm. †Myocricetodontinae Lavocat 1961
+
G. †Boltimys Sénégas and Michaux 2000
G. †Dakkamys Jaeger 1977
G. †Mellalomys Jaeger 1977
G. Myotomys Thomas 1918
G. †Mysops Leidy 1871
+
†Mysops fraternus Leidy 1873
†Mysops minimus Leidy 1871
†Mysops parvus Marsh 1872
†Mysops wilsoni Wood 1962
Invalid names: Syllophodus Cope 1881 [synonym]
G. Nesokia Alston 1876 [short-tailed bandicoot rat]
G. †Occitanomys Michaux 1969
+
Subg. †Occitanomys (Rhodomys) Martín Suárez and Mein 1991
†Occitanomys anomalus de Bruijn et al. 1970
†Occitanomys brailloni Michaux 1969
†Occitanomys montheleni Aguilar et al. 1986
†Occitanomys neutrum de Bruijn 1976
†Occitanomys provocator de Bruijn 1976
Invalid names: Valerymys Michaux 1969 [synonym]
G. †Orientalomys de Bruijn and van der Meulen 1975
+
†Orientalomys similis Argyropulo and Pidoplichka 1939
†Orientalomys sinensis Qiu and Storch 2000
G. Papagomys Sody 1941
+
Papagomys armandvillei Jentink 1892 [Flores giant rat]
G. †Paraethomys Petter 1968
G. †Parapelomys Jacobs 1978
+
†Parapelomys robertsi Jacobs 1978
G. †Parapodemus Schaub 1938
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†Parapodemus coronensis Schaub 1938
†Parapodemus gaudryi Dames 1883
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Invalid names: Apodemus primaevus Hugueney 1965 [synonym], Parapodemus schaubi Papp 1947 [synonym]
†Parapodemus lugdunensis Schaub 1938
†Parapodemus meini Martín Suárez and Freudenthal 1993
G. Parotomys Thomas 1918
G. Pelomys Peters 1852 [groove-toothed swamp rat]
+
†Pelomys europeus de Bruijn et al. 1970
G. Praomys Thomas 1915 [African soft-furred rat]
+
G. †Proceromys Brandy 1979
G. †Progonomys Schaub 1938
+
†Progonomys cathalai Schaub 1938
†Progonomys hispanicus van der Weerd 1976
†Progonomys orientalis Schaub 1938
†Progonomys woelferi Bachmayer and Wilson 1970
+
Invalid names: Karnimata darwini Jacobs 1978 [synonym]
G. Rhabdomys Thomas 1916 [striped mouse]
G. †Rhagamys Major 1905
+
†Rhagamys orthodon Hensel 1856
G. †Rhagapodemus Kretzoi 1958
+
†Rhagapodemus vandeweerdi de Bruijn and van der Meulen 1975
G. Rhagomys Thomas 1917
G. Saccostomus Peters 1846 [pouched mouse]
G. †Saidomys James and Slaughter 1974
Subfm. Spalacinae Thomas 1896 [blind mole]
+
G. †Debruijnia Ünay 1996
G. †Pliospalax Kormos 1932
G. Spalax Güldenstadt 1770
+
Invalid names: Glis Erxleben 1777 [replaced]
G. †Vetusspalax de Bruijn et al. 2013
G. Steatomys Peters 1846 [fat mouse]
+
Steatomys jacksoni Hayman 1935 [Jackson's fat mouse]
Steatomys pratensis Peters 1846 [fat mouse]
G. †Stephanomys Schaub 1938
+
†Stephanomys ramblensis van de Weerd 1976
Subfm. †Tachyoryctoidinae Schaub 1958
+
G. †Ayakozomys Tyutkova 2000
G. †Eumysodon Argyropulo 1939
G. †Tachyoryctoides Bohlin 1937
+
Invalid names: Aralomys Argyropulo 1939 [synonym]
G. Tarsomys Mearns 1905
+
Tarsomys apoensis Mearns 1905
G. Thallomys Thomas 1920
G. Thamnomys Thomas 1907
+
Thamnomys rutilans Peters 1876
Thamnomys venustus Thomas 1907
G. †Valerimys
G. Zelotomys Osgood 1910
+
Zelotomys instans Thomas 1915
Invalid names: Castorina Gray 1825 [empty]
+
+
G. Beamys Thomas 1909
G. Cricetomys Waterhouse 1840 [giant pouched rat]
Subfm. Dendromurinae Alston 1875
+
G. Dendromus Smith 1829 [African climbing mice]
G. Malacothrix Wagner 1843
G. Macrotarsomys Milne-Edwards and Grandidier 1898 [big-footed mouse]
+
G. Mystromys Wagner 1841
Subfm. Nesomyinae
+
G. Brachytarsomys Günther 1875
G. Eliurus Milne-Edwards 1885 [tufted-tailed rat]
G. Gymnuromys Forsyth Major 1896
G. Hypogeomys Grandidier 1869 [Malagasy giant rat]
G. Nesomys Peters 1870
+
G. Petromyscus Thomas 1926
Subfm. Lophiomyinae Gill 1872
+
G. Lophiomys Milne-Edwards 1867 [crested rat]
+
G. Myospalax Laxmann 1773 [zokor]
Subfm. Platacanthomyinae Alston 1876
+
G. †Neocometes Schaub and Zapfe 1953
+
†Neocometes orientalis Mein 1990
†Neocometes similis Fahlbusch 1966
G. Platacanthomys Blyth 1859
+
Platacanthomys lasiurus Blyth 1859 [malabar spiny dormouse]
G. Typhlomys Milne-Edwards 1877 [Chinese pygmy dormouse]
+
Typhlomys chapensis Osgood 1932
Typhlomys cinereus Milne-Edwards 1877
Typhlomys daloushanensis Cheng et al. 2017
Typhlomys nanus Cheng et al. 2017
†Typhlomys storchi Qiu and Ni 2019
Fm. †Pseudocricetodontidae Engesser 1987
+
Invalid names: Adelomyarioninae Unay-Bayraktar 1989 [empty]
Fm. Spalacidae Gray 1821
+
G. †Heramys Klein Hofmeijer and de Bruijn 1985
+
†Heramys eviensis Klein Hofmeijer and de Bruijn 1985
G. Nannospalax Palmer 1903
G. †Pannoniamys van de Weerd et al. 2022
+
†Pannoniamys paragovensis van de Weerd et al. 2022
Subfm. Rhizomyinae Miller and Gidley 1918
+
G. †Brachyrhizomys Teilhard de Jardin 1942
G. Cannomys Thomas 1915 [lesser bamboo rat]
+
Cannomys badius Hodgson 1841 [Lesser bamboo rat]
G. †Pararhizomys Teilhard de Jardin and Young 1931
G. †Prokanisamys de Bruijn et al. 1981
+
†Prokanisamys kowalskii Lindsay 1996
G. †Rhizomyoides Black 1972
G. Rhizomys Gray 1831 [greater bamboo rat]
+
†Rhizomys troglodytes Matthew and Granger 1923
+
G. Tachyoryctes Rüppell 1835
Invalid names: Cricetopsinae Matthew and Granger 1923 [empty], Eucricetodontidae Mein and Freudenthal [empty], Heterocricetodontidae Unay-Bayraktar 1989 [empty]
Subfm. †Nonomyinae Martin 1980
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G. †Diplolophus Troxell 1923
+
†Diplolophus insolens Troxell 1923
+
Invalid names: Gidleumys adspectans Wood 1936 [synonym]
Invalid names: Gidleumys Wood 1936 [synonym]
G. †Nonomys Emry and Dawson 1973
+
†Nonomys gutzleri Walsh 2010
†Nonomys simplicidens Emry and Dawson 1972
+
Invalid names: Subsumus candelariae Wood 1974 [synonym]
Invalid names: Subsumus Wood 1974 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingo
Diet: herbivoreo
Reproduction: viviparoussubc
Created: 2005-08-26 14:04:46
Modified: 2005-08-26 16:04:46
Source: o = order, subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Lillegraven 1979, Carroll 1988, Ji et al. 2002, Nowak 1999

Age range

Maximum range based only on fossils: base of the Bridgerian to the top of the Holocene or 50.50000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 48.07 Ma

Collections (1395 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Early/Lower Eocene56.0 - 48.07China (Nei Mongol) Erlianomys combinatus (75275)
Irdinmanhan56.0 - 37.71Kazakhstan Aksyiromys dalos (177047 177048 177049)
Sharamurunian56.0 - 37.71China (Shanxi) Banyuesminthus diconjugatus, Primisminthus jinus (41116)
Sharamurunian56.0 - 37.71China (Henan) Banyuesminthus uniconjugatus, Sinosminthus sp., Primisminthus jinus, Primisminthus shanghenus (41120)
Bridgerian50.5 - 46.2USA (Wyoming) Mysops fraternus (16227) Mysops minimus, Mysops parvus (16228) Mysops parvus (16418 16647)
Bridgerian50.5 - 46.2USA (Nevada) Elymys complexus (16218)
Middle Eocene48.07 - 37.71Kazakhstan Aksyiromys dalos (180518)
Early/Lower Uintan46.2 - 39.7USA (California) Simimys simplex (16694 16695 16696 16763 16764 16765 16767 16768 16770 16771 16773 16775 16776 16777 16778)
Late/Upper Uintan46.2 - 39.7USA (California) Simimys simplex (16585 16766 16780 167831) Simimys sp. (16817)
Late/Upper Uintan46.2 - 39.7USA (Texas) Nonomys sp. (16542)
Uintan46.2 - 39.7USA (California) Simimys murinus, Simimys simplex (16786) Simimys simplex (16530 16602 16603 16615 16629 16789 16790 16791) Simimys sp. (16590 16783)
Late/Upper Uintan - Duchesnean46.2 - 37.0USA (California) Simimys simplex (16529) Simimys sp. (241740)
Uintan - Duchesnean46.2 - 37.0USA (California) Simimys simplex (16533)
Duchesnean39.7 - 37.0USA (Utah) Simimys sp. (16877)
Duchesnean39.7 - 37.0USA (Texas) Simimys sp. (16837)
Duchesnean39.7 - 37.0USA (California) Diplolophus sp., Nonomys sp. (17039) Simimys simplex (16806 16810) Simimys simplex, Zapodidae indet., Simimys sp. (16813)
Late/Upper Eocene37.71 - 33.9China (Nei Mongol) Allosminthus ernos, Allosminthus majusculus, Allosminthus diconjugatus (174913) Brachyscirtetes tomidai (174914)
Late/Upper Eocene37.71 - 33.9Kazakhstan Allosminthus sp., Allosminthus ernos, Sinosminthus sp., Heosminthus primiveris (201016)
Late/Upper Eocene37.71 - 33.9Serbia (Pirotska oblast ) Spalacinae sp. (196835)
Ulangochuian37.71 - 33.9China (Nei Mongol) Allosminthus ernos, Allosminthus majusculus, Allosminthus diconjugatus, Sinosminthus sp., Heosminthus nomogenesis (73811)