Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Cimolesta

Mammalia

Synonymy list
YearName and author
1975Cimolesta McKenna p. 41
1997Cimolesta McKenna and Bell p. 211
2004Cimolesta Kielan-Jaworowska et al. pp. 494, 506-507
2006Cimolesta Lopatin
2011Cimolesta Williamson et al. p. 164
2012Cimolesta Rose et al.
2015Cimolesta Fox

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
RankNameAuthor
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Cimolesta()
—Cimolesta()

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.

Unr. †Cimolesta McKenna 1975
show all | hide all
Subor. †Apatotheria Scott and Jepsen 1936
+
Fm. †Apatemyidae Matthew 1909
+
Subfm. †Apatemyinae Matthew 1909
+
Invalid names: Heterohyins Gervais 1859 [synonym]
G. †Apatemys Marsh 1872
+
†Apatemys bellulus Marsh 1872
+
Invalid names: Apatemys hurzeleri Gazin 1962 [synonym], Teilhardella whitakeri Simpson 1954 [synonym]
†Apatemys bellus Marsh 1872
†Apatemys chardini Jepsen 1930
†Apatemys downsi Gazin 1958
†Apatemys hendryi Robinson 1966
†Apatemys mutiniacus Russell et al. 1979
†Apatemys prouti Hooker 2010
†Apatemys pygmaeus Beard and Dawson 2009
†Apatemys rodens Troxell 1923
†Apatemys sigogneauae Russell et al. 1979
†Apatemys sigogneaui Russell et al. 1979
†Apatemys teilhardi Russell et al. 1979
Invalid names: Stehlinius Matthew 1921 [synonym]
G. †Carcinella Von Koenigswald et al. 2009
+
†Carcinella sigei von Koenigswald et al. 2009
G. †Eochiromys Teilhard de Chardin 1927
+
†Eochiromys landenensis Teilhard de Chardin 1927
G. †Frugivastodon Bajpai et al. 2005
+
†Frugivastodon cristatus Bajpai et al. 2005
G. †Heterohyus Gervais 1848
+
Subg. †Heterohyus (Gervaisyus) Sudre et al. 1990
+
†Heterohyus (Gervaisyus) pygmaeus Sudre et al. 1990
†Heterohyus armatus Gervais 1848
†Heterohyus ilerdensis López-Torres and Silcox 2018
†Heterohyus morinionensis Hooker 1986
†Heterohyus nanus Teihard de Chardin 1916
†Heterohyus pygmaeus Sudre et al. 1990
†Heterohyus quercyi Filhol 1890
+
Invalid names: Heterochiromys gracilis Stehlin 1916 [synonym]
†Heterohyus sudrei Sigé 1975
Invalid names: Amphichiromys Stehlin 1916 [synonym], Heterochiromys Stehlin 1916 [synonym], Necrosorex Filhol 1890 [synonym]
G. †Jepsenella Simpson 1940
+
†Jepsenella praepropera Simpson 1940
G. †Labidolemur Matthew and Granger 1921
+
†Labidolemur kayi Simpson 1929
†Labidolemur major West 1972
†Labidolemur serus Gingerich 1982
†Labidolemur soricoides Matthew and Granger 1921
G. †Russellmys Estravís 1990
+
†Russellmys denisae Estravís 1990
G. †Sinclairella Jepsen 1934
+
†Sinclairella dakotensis Jepsen 1934
†Sinclairella simplicidens Czaplewski and Morgan 2015
G. †Stehlinella Matthew 1929
G. †Teilhardella Jepsen 1930
G. †Unuchinia Simpson 1937
+
†Unuchinia asaphes Simpson 1936
†Unuchinia diaphanes Gunnell 1988
†Unuchinia dysmathes Holtzman 1978
Invalid names: Apator Simpson 1936 [replaced]
Invalid names: Russellmyinae Estravís 1990 [empty], Unuchiniinae Van Valen and McKenna 1967 [empty]
Fm. †Cimolestidae Marsh 1889
+
G. †Aboletylestes Russell 1964
+
†Aboletylestes hypselus Russell 1964
†Aboletylestes robustus Gheerbrant 1992
G. †Alveugena Eberle 1999
+
†Alveugena carbonensis Eberle 1999
G. †Ambilestes Fox 2015
+
†Ambilestes cerberoides Lillegraven 1969
G. †Avunculus Van Valen 1966
+
†Avunculus didelphodonti Van Valen 1966
G. †Bagalestes Lopatin 2006
+
†Bagalestes trofimovi Lopatin 2006
G. †Batodon Marsh 1892
+
†Batodon tenuis Marsh 1892
G. †Betonnia Williamson et al. 2011
+
†Betonnia tsosia Williamson et al. 2011
G. †Chacopterygus Williamson et al. 2011
+
†Chacopterygus minutus Williamson et al. 2011
G. †Cimolestes Marsh 1889
+
†Cimolestes cuspulus Gheerbrant 1992
†Cimolestes incisus Marsh 1889
+
Invalid names: Nyssodon punctidens Simpson 1927 [synonym]
†Cimolestes stirtoni Clemens 1973
Invalid names: Nyssodon Simpson 1927 [synonym]
G. †Delphodon Simpson 1927
+
†Delphodon comptus Marsh 1889
†Delphodon praenuntius Russell 1928
G. †Gelastops Simpson 1935
+
†Gelastops joni Rigby, Jr. 1980
†Gelastops parcus Simpson 1935
+
Invalid names: Emperodon acmeodontoides Simpson 1935 [synonym]
Invalid names: Emperodon Simpson 1935 [synonym]
G. †Ilerdoryctes Marandat 1989
+
†Ilerdoryctes sigei Marandat 1989
G. †Maelestes Wible et al. 2007
+
†Maelestes gobiensis Wible et al. 2007
G. †Naranius Russell and Dashzeveg 1986
+
†Naranius americanus Beard and Dawson 2009
†Naranius infrequens Russell and Dashzeveg 1986
G. †Paleotomus Van Valen 1967
+
†Paleotomus carbonensis Secord 1998
†Paleotomus junior Scott et al. 2002
†Paleotomus milleri Rigby, Jr. 1980
†Paleotomus radagasti Van Valen 1978
†Paleotomus senior Simpson 1937
+
Invalid names: Palaeosinopa simpsoni Van Valen 1967 [synonym]
Invalid names: Niphredil Van Valen 1978 [synonym]
G. †Procerberus Sloan and Van Valen 1965
+
†Procerberus andesiticus Middleton and Dewar 2004
†Procerberus formicarum Sloan and Van Valen 1965
†Procerberus grandis Middleton and Dewar 2004
†Procerberus plutonis Van Valen 1978
G. †Puercolestes Reynolds 1936
+
†Puercolestes simpsoni Reynolds 1936
G. †Scollardius Fox 2015
+
†Scollardius propalaeoryctes Lillegraven 1969
G. †Suratilestes Bajpai et al. 2005
+
†Suratilestes gingerichi Bajpai et al. 2005
G. †Telacodon Marsh 1892
+
†Telacodon laevis Marsh 1892
†Telacodon praestans Marsh 1892
Subor. †Pantodonta Cope 1873 [pantodont]
+
Fm. †Alcidedorbignyidae de Muizon and Marshall 1992
+
G. †Alcidedorbignya de Muizon and Marshall 1987
+
†Alcidedorbignya inopinata de Muizon and Marshall 1992
Fm. †Archaeolambdidae Flerov 1952
+
G. †Celaenolambda Tong and Wang 2006
+
†Celaenolambda wangzhaoi Tong and Wang 2006
Fm. †Barylambdidae Patterson 1939
+
G. †Barylambda Patterson 1937
+
†Barylambda faberi Patterson 1933
G. †Haplolambda Patterson 1939
+
†Haplolambda planicanina Flerov 1952
†Haplolambda quinni Patterson 1939
†Haplolambda simpsoni Miller 1986
G. †Ignatiolambda Simons 1960
+
†Ignatiolambda barnesi Simons 1960
G. †Leptolambda Patterson and Simons 1958
+
†Leptolambda churchilli Gingerich and Childress, Jr. 1983
†Leptolambda schmidti Patterson and Simons 1958
Fm. †Bemalambdidae Chow et al. 1973
+
G. †Bemalambda Chow et al. 1973
+
†Bemalambda crassa Chow et al. 1973
†Bemalambda dingae Li 2005
†Bemalambda nanhsiungensis Chow et al. 1973
†Bemalambda pachyoesteus Chow et al. 1973
G. †Hypsilolambda Wang 1975
+
†Hypsilolambda impensa Wang 1975
Fm. †Coryphodontidae Marsh 1876
+
G. †Asiocoryphodon Xu 1976
+
+
Invalid names: Asiocoryphodon progressivus Cheng and Ma 1990 [synonym]
G. †Coryphodon Owen 1845
+
†Coryphodon armatus Cope 1872
+
Invalid names: Bathmodon cuspidatus Cope 1875 [synonym], Bathmodon elephantopus Cope 1874 [synonym], Bathmodon latidens Cope 1875 [synonym], Bathmodon lomas Cope 1874 [synonym], Bathmodon molestus Cope 1874 [synonym], Bathmodon simus Cope 1874 [synonym], Coryphodon curvicristis Cope 1882 [synonym], Coryphodon obliquus Cope 1877 [synonym], Coryphodon wortmani Osborn 1898 [synonym]
†Coryphodon eocaenus Owen 1846
+
Invalid names: Coryphodon anthracoideus Blainville 1846 [synonym], Coryphodon marginatus Cope 1882 [synonym]
†Coryphodon flerowi Chow 1957
†Coryphodon gosseleti Malaquin 1899
†Coryphodon lobatus Cope 1877
+
Invalid names: Coryphodon anax Cope 1882 [synonym], Coryphodon ventanus Osborn 1898 [synonym]
†Coryphodon oweni Hebert 1856
†Coryphodon pisuqti Dawson 2012
†Coryphodon proterus Simons 1960
†Coryphodon radians Cope 1872
+
Invalid names: Coryphodon hamatus Marsh 1876 [synonym], Coryphodon repandus Cope 1882 [synonym], Ectacodon cinctus Cope 1882 [synonym], Manteodon subquadratus Cope 1882 [synonym], Metalophodon testis Cope 1882 [synonym]
†Coryphodon ryani Morgan 1995
†Coryphodon singularis Osborn 1898
Invalid names: Bathmodon Cope 1872 [synonym], Ectacodon Cope 1882 [synonym], Loxolophodon Cope 1872 [synonym], Manteodon Cope 1882 [synonym], Metalophodon Cope 1872 [synonym]
G. †Eudinoceras Osborn 1924
+
†Eudinoceras crassum Tong and Tang 1977
†Eudinoceras mongoliensis Osborn 1924
+
Invalid names: Eudinoceras kholobolchiensis Osborn and Granger 1931 [synonym], Eudinoceras obailiensis Gabounia 1962 [synonym], Gobiatherium monolobotum Qi 1987 [synonym], Metacoryphodon luminis Chow and Qi 1982 [synonym], Metacoryphodon minor Qi 1987 [synonym]
†Eudinoceras xintaiensis Chow and Qi 1982
†Eudinoceras youngi Xu 1980
†Eudinoceras zhichengensis Lei et al. 1987
Invalid names: Metacoryphodon Chow and Qi 1982 [synonym]
G. †Heterocoryphodon Lucas and Tong 1987
+
†Heterocoryphodon xuae Tong and Wang 2006
†Heterocoryphodon yuntongi Tong and Wang 2006
G. †Hypercoryphodon Osborn and Granger 1932
+
†Hypercoryphodon thomsoni Osborn and Granger 1932
G. †Wutucoryphodon Tong and Wang 2006
+
†Wutucoryphodon xianwui Tong and Wang 2006
Invalid names: Bathmodontidae Cope 1873 [synonym]
G. †Crustulus Clemens 2017
+
†Crustulus fontanus Clemens 2017
Fm. †Harpyodidae Wang 1979
+
G. †Harpyodus Qiu and Li 1977
+
†Harpyodus decorus Wang 1979
†Harpyodus euros Qiu and Li 1977
†Harpyodus progressus Huang and Zheng 1997
G. †Huananius Huang and Zheng 1999
+
†Huananius youngi Huang and Zheng 1999
Fm. †Pantolambdidae Cope 1883
+
G. †Caenolambda Gazin 1956
+
†Caenolambda jepseni Simons 1960
+
Invalid names: Barylambda jackwilsoni Schiebout 1974 [synonym]
†Caenolambda pattersoni Gazin 1956
G. †Nanxiongilambda Quan and Wang 2024
+
†Nanxiongilambda yei Quan and Wang 2024
G. †Pantolambda Cope 1882
+
†Pantolambda bathmodon Cope 1882
†Pantolambda intermedius Simpson 1935
+
Invalid names: Titanoides simpsoni Simons 1960 [synonym]
Superfm. †Pantolambdoidea Cope 1883
+
Fm. †Cyriacotheriidae Rose and Krause 1982
+
G. †Cyriacotherium Rose and Krause 1982
+
†Cyriacotherium argyreum Rose and Krause 1982
†Cyriacotherium psamminum Rose and Krause 1982
Invalid names: Sabatherium McKenna 1972 [nomen nudum], Sabatherium sacrosanctum McKenna 1972 [nomen nudum]
G. †Presbytherium Scott 2010
+
†Presbytherium taurus Scott 2010
Fm. †Pantolambdodontidae Granger and Gregory 1934
+
G. †Archaeolambda Flerov 1952
+
G. †Dilambda Tong 1978
+
G. †Nanlingilambda Tong 1979
+
†Nanlingilambda datangensis Huang and Zheng 2003
G. †Oroklambda Dashzeveg 1980
G. †Pantolambdodon Granger and Gregory 1934
+
†Pantolambdodon fortis Granger and Gregory 1934
†Pantolambdodon inermis Granger and Gregory 1934
Subfm. †Pantolambdodontinae Huang 1995
+
G. †Guichilambda Huang and Chen 1997
Fm. †Pastoralodontidae Chow and Qi 1978
+
G. †Altilambda Chow and Wang 1978
+
†Altilambda minor Tong 1982
†Altilambda pactus Chow and Wang 1978
†Altilambda tenuis Chow and Wang 1978
†Altilambda yujingensis Wang et al. 1992
G. †Convallisodon Chow and Qi 1978
+
†Convallisodon convexus Chow and Qi 1978
†Convallisodon haliutensis Chow and Qi 1978
G. †Pastoralodon Chow and Qi 1978
+
†Pastoralodon lacustris Chow and Qi 1978
Subfm. †Titanoideidae Patterson 1934
+
G. †Thulitheripus Lüthje et al. 2010
+
†Thulitheripus svalbardii Lüthje et al. 2010
G. †Titanoides Gidley 1917
+
†Titanoides gidleyi Jepsen 1930
+
Invalid names: Titanoides zeuxis Simpson 1937 [synonym]
†Titanoides looki Patterson 1939
†Titanoides major Simons 1960
†Titanoides nanus Gingerich 1996
†Titanoides primaevus Gidley 1917
Invalid names: Sparactolambda Patterson 1939 [synonym]
Fm. †Wangliidae Van Valen 1988
+
G. †Wanglia Van Valen 1988
Invalid names: Coryphodontoidea Simons 1960 [empty], Plethorodontidae Huang and Zheng 1987 [empty]
Fm. †Pentacodontidae Simpson 1937
+
G. †Amaramnis Gazin 1962
+
†Amaramnis gregoryi Gazin 1962
G. †Aphronorus Simpson 1935
+
†Aphronorus bearspawensis Scott et al. 2013
†Aphronorus fraudator Simpson 1935
†Aphronorus orieli Gazin 1969
†Aphronorus ratatoski Winterfeld 1982
†Aphronorus simpsoni Gazin 1938
G. †Bisonalveus Gazin 1956
+
†Bisonalveus browni Gazin 1956
†Bisonalveus holtzmani Gingerich 1983
G. †Eurolestes De Bast and Smith 2017
+
†Eurolestes dupuisi De Bast and Smith 2017
Fm. †Sarcodontidae Lopatin and Kondrashov 2004
+
G. †Carnilestes Wang and Zhai 1995
+
†Carnilestes major Wang and Zhai 1995
†Carnilestes palaeoasiaticus Wang and Zhai 1995
G. †Hyracolestes Matthew and Granger 1925
+
†Hyracolestes ermineus Matthew and Granger 1925
G. †Metasarcodon Lopatin and Kondrashov 2004
+
†Metasarcodon reshetovi Lopatin and Kondrashov 2004
†Metasarcodon udovichenkoi Averianov 1994
G. †Prosarcodon McKenna et al. 1984
+
†Prosarcodon lonanensis McKenna et al. 1984
†Prosarcodon maturus Lopatin and Kondrashov 2004
†Prosarcodon minutus Lopatin and Kondrashov 2004
G. †Sarcodon Matthew and Granger 1925
+
†Sarcodon minor Meng et al. 1998
†Sarcodon pygmaeus Matthew and Granger 1925
+
Invalid names: Opisthopsalis vetus Matthew et al. 1929 [synonym]
†Sarcodon zhaii Huang 2003
Invalid names: Opisthopsalis Matthew et al. 1929 [synonym]
Subor. †Tillodontia Marsh 1875 [tillodont]
+
G. †Azygonyx Gingerich 1989
+
†Azygonyx ancylion Gingerich and Gunnell 1979
†Azygonyx grangeri Simpson 1937
†Azygonyx latidens Simpson 1937
†Azygonyx xenicus Gingerich and Gunnell 1979
G. †Basalina Dehm and Oettingen-Spielberg 1958
+
†Basalina basalensis Dehm and Oettingen-Spielberg 1958
G. †Benaius Wang and Jin 2004
+
†Benaius qianshuiensis Wang and Jin 2004
G. †Dysnoetodon Zhang 1980
+
†Dysnoetodon minuta Zhang 1980
Fm. †Esthonychidae Cope 1883
+
G. †Adapidium Young 1937
+
†Adapidium huanghoense Young 1937
Subfm. †Esthonychinae Zittel and Schlosser 1911
+
G. †Anthraconyx Rose et al. 2013
+
†Anthraconyx hypsomylus Rose et al. 2013
G. †Esthonyx Cope 1874
+
†Esthonyx acutidens Cope 1881
†Esthonyx bisulcatus Cope 1874
+
Invalid names: Esthonyx acer Cope 1874 [synonym], Esthonyx burmeisterii Cope 1874 [synonym]
†Esthonyx gunnelli Gingerich 1989
†Esthonyx munieri Lemoine 1891
+
Invalid names: Franchaius russellonyx Baudry 1992 [synonym], Plesiesthonyx chardini Baudry 1992 [synonym], Plesiesthonyx elongatus Baudry 1992 [synonym]
†Esthonyx spatularius Cope 1880
G. †Indoesthonyx Smith et al. 2016
+
†Indoesthonyx suratensis Smith et al. 2016
G. †Paresthonyx Tong and Wang 2006
+
†Paresthonyx orientalis Tong and Wang 2006
G. †Megalesthonyx Rose 1971
+
†Megalesthonyx hopsoni Rose 1971
G. †Plesiesthonyx Lemoine 1891
+
†Plesiesthonyx luciae Baudry 1992
†Plesiesthonyx minimus Baudry 1992
Invalid names: Franchaius Baudry 1992 [synonym]
Subfm. †Trogosinae Gazin 1953
+
G. †Higotherium Miyata and Tomida 1998
+
†Higotherium hypsodon Miyata and Tomida 1998
G. †Tillodon Gazin 1953
+
†Tillodon fodiens Marsh 1875
G. †Trogosus Leidy 1871
+
†Trogosus castoridens Leidy 1871
†Trogosus gazini Miyata 2007
†Trogosus grangeri Gazin 1953
†Trogosus hillsii Gazin 1953
†Trogosus hyracoides Marsh 1873
†Trogosus latidens Marsh 1874
†Trogosus shantunensis Chow 1963
+
Invalid names: Kuanchuanius danjiangensis Cheng and Ma 1990 [synonym]
Invalid names: Tillotherium Marsh 1873 [synonym]
Invalid names: Anchippodus Leidy 1868 [nomen dubium]
Invalid names: Anchippodontidae Gill 1872 [synonym], Tillotheriidae Marsh 1875 [synonym]
G. †Kuanchuanius Chow 1963
+
G. †Lofochaius Chow et al. 1973
+
†Lofochaius brachyodus Chow et al. 1973
G. †Meiostylodon Wang 1975
+
G. †Plethorodon Huang and Zheng 1987
+
†Plethorodon chienshanensis Huang and Zheng 1987
G. †Simplodon Huang and Zheng 2003
+
†Simplodon qianshanensis Huang and Zheng 2003
Fm. †Yuesthonychidae Tong et al. 2003
+
G. †Yuesthonyx Tong et al. 2003
+
†Yuesthonyx tingae Tong et al. 2003
Fm. †Todralestidae Gheerbrant 1991
+
G. †Namalestes Pickford et al. 2008
+
†Namalestes gheerbranti Pickford et al. 2008
G. †Todralestes Gheerbrant 1991
+
†Todralestes butleri Gheerbrant 1993
†Todralestes variabilis Gheerbrant 1991
†Todralestes variabilis Gheerbrant 1991
Invalid names: Didelphodonta McKenna 1975 [empty], Ernanodonta Ding 1987 [empty], Palaeoryctida Averianov 2003 [empty], Pantolesta McKenna 1975 [empty]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Maximum body mass: 1000 kgg
Minimum body mass: 300 kgg
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: scansorialsubc
Diet: insectivoresubc
Reproduction: viviparoussubc
Created: 2005-09-06 20:43:42
Modified: 2005-09-06 22:44:32
Source: g = genus, subc = subclass, c = class, subp = subphylum
References: Uhen and Gingerich 1995, Hendy et al. 2009, Ji et al. 2002, Carroll 1988, Lillegraven 1979

Age range: base of the Judithian to the top of the Chattian or 83.50000 to 23.03000 Ma

Collections (1111 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Judithian83.5 - 70.6Canada (Alberta) Cimolestes sp. (14451)
Judithian83.5 - 70.6USA (New Mexico) Cimolestes sp. (14464)
Late/Upper Campanian83.5 - 70.6USA (New Mexico) Cimolestes sp. (14498)
Late/Upper Campanian83.5 - 70.6Mongolia Maelestes gobiensis (87870)
Middle Campanian83.5 - 70.6Canada (Alberta) Cimolestes sp. (45561)
Middle Campanian - Late/Upper Campanian83.5 - 70.6USA (Montana) Cimolestes sp., Batodon sp. (14446)
Early/Lower Maastrichtian70.6 - 66.0Canada (Alberta) Cimolestes sp. (14502)
Lancian70.6 - 66.0USA (Wyoming) Batodon tenuis, Cimolestes incisus (14589) Batodon tenuis, Cimolestes incisus, Cimolestes stirtoni (14519) Batodon tenuis, Cimolestes incisus, Didelphodon comptus (14565) Cimolestes incisus (14538 14566) Cimolestes incisus, Cimolestes stirtoni (14505 14598) Cimolestes incisus, Didelphodon comptus (14590 14591) Cimolestes incisus, Didelphodon comptus, Telacodon laevis (14587) Cimolestes sp. (14540 14567 14606 14656)
Lancian70.6 - 66.0USA (South Dakota) Delphodon comptus (14571)
Lancian70.6 - 66.0USA (Montana) Batodon tenuis (14516 14575 14618 14624 14650 172644) Batodon tenuis, Cimolestes incisus, Cimolestes propalaeoryctes, Cimolestes stirtoni (14549) Cimolestes cerberoides (14654) Cimolestes incisus (14616)

Youngest occurrences
Time interval Ma Country or state PBDB collection number
Late/Upper Eocene37.2 - 33.9China (Nei Mongol) Eudinoceras mongoliensis (174914)
Late/Upper Eocene37.2 - 33.9United Kingdom (England) Heterohyus nanus (41665) Heterohyus sp. (39662)
Late/Upper Eocene37.2 - 33.9China (Guangxizhuangzu zizhiqu) Eudinoceras crassum (37025)
Chadronian - Orellan37.2 - 33.3USA (Nebraska) Sinclairella dakotensis (186970)
Late/Upper Chadronian - Orellan37.2 - 33.3USA (Nebraska) Apatemys sp., Sinclairella dakotensis (230806)
Orellan33.9 - 33.3USA (Colorado) Sinclairella dakotensis (17081)
Early/Lower Oligocene33.9 - 28.4Italy (Vicenza) Pantolesta indet. (84793)
Whitneyan33.3 - 30.8USA (South Dakota) Sinclairella dakotensis (17337) Sinclairella sp. (17357)
Arikareean29.5 - 18.5USA (Oregon) Sinclairella dakotensis (228640)
Chattian28.1 - 23.03USA (Florida) Sinclairella simplicidens (17764)