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Theriimorpha was named by Rowe (1993). It is extant.

It was reranked as the unranked clade Theriamorpha by Luo et al. (2011).

It was assigned to Mammalia by Rougier et al. (2007) and Luo et al. (2011).

Synonymy list
YearName and author
1993Theriimorpha Rowe p. 4
2007Theriimorpha Rougier et al. p. 4
2011Theriamorpha Luo et al. p. 444

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EubilateriaAx 1987
phylumChordataHaeckel 1874
subclassDipnotetrapodomorpha(Nelson 2006)
subclassAmphibiosauriaKuhn 1967
Theriamorpha(Rowe 1993)
Theriamorpha(Rowe 1993)

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. Theriamorpha Rowe 1993
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Fm. †Amphilestidae Osborn 1888
G. †Amphilestes Owen 1859
G. †Aploconodon Simpson 1925
Aploconodon comoensis Simpson 1925
G. †Comodon Kretzoi and Kretzoi 2000
Comodon gidleyi Simpson 1925
Invalid names: Phascolodon Simpson 1925 [replaced], Phascolotheridium Cifelli and Dykes 2001 [synonym]
G. †Kemchugia Averianov et al. 2005
Kemchugia magna Averianov et al. 2005
G. †Liaotherium Zhou et al. 1991
Liaotherium gracile Zhou et al. 1991
G. †Phascolotherium Owen 1838
Phascolotherium bucklandi Broderip 1828
Phascolotherium simpsoni Butler and Sigogneau-Russel 2016
G. †Tendagurodon Heinrich 1998
Tendagurodon janenschi Heinrich 1998
Invalid names: Gobiconodontinae Chow and Rich 1984 [empty]
Unr. †Theriiformes Rowe 1988
Fm. †Tinodontidae Marsh 1887
G. †Tinodon Marsh 1879
Tinodon bellus Marsh 1879
Invalid names: Eurylambda aequicrurius Simpson 1925 [synonym]
Tinodon lepidus Marsh 1879
Invalid names: Menacodon rarus Marsh 1887 [synonym]
Tinodon micron Ensom and Sigogneau-Russell 2000
Invalid names: Eurylambda Simpson 1929 [synonym], Menacodon Marsh 1887 [synonym]
G. †Yermakia Lopatin et al. 2005
Yermakia domitor Lopatin et al. 2005
Unr. Trechnotheria McKenna 1975
Unr. Cladotheria McKenna 1975
Fm. †Amphitheriidae Owen 1846
G. †Amphibetulimus Lopatin and Averianov 2007
G. †Amphitherium de Blainville 1838
Invalid names: Amphigonus Agassiz 1835 [synonym], Thylacotherium Valenciennes 1838 [synonym]
Invalid names: Diplocynodontidae Marsh 1887 [synonym]
Superor. †Dryolestoidea Butler 1939
G. †Barberenia Bonaparte 1990
G. †Brandonia Bonaparte 1990
Or. †Dryolestida Prothero 1981
Fm. †Dryolestidae Marsh 1879
Or. †Meridiolestida Rougier et al. 2011
Fm. †Paurodontidae Marsh 1887
Invalid names: Amphitheriida Prothero 1981 [empty]
Fm. †Vincelestidae Bonaparte 1986
G. †Vincelestes Bonaparte 1986
Unr. Zatheria McKenna 1975
G. †Abelodon Brunet 1990
G. †Arguimus Dashzeveg 1979
Invalid names: Arguitherium Dashzeveg 1994 [synonym]
G. †Chunnelodon Ensom and Sigogneau-Russell 1998
G. †Magnimus Sigogneau-Russell 1999
G. †Minimus Sigogneau-Russell 1999
Fm. †Mozomuridae Li et al. 2005
G. †Nanolestes Martin 2002
G. †Palaeoxonodon Freeman 1976
Or. †Peramura McKenna 1975
Unr. †Prototheria Gill 1872
Subcl. Tribosphenida McKenna 1975
Invalid names: Boreosphenida Luo et al. 2001 [objective synonym]
Unr. †Spalacotherioidea Prothero 1981
Fm. †Spalacotheriidae Marsh 1887
G. †Akidolestes Li and Luo 2006
G. †Cifellitherium Martin et al. 2022
G. †Infernolestes Cifelli et al. 2014
G. †Peralestes Owen 1871
Subfm. †Spalacolestinae Cifelli and Madsen 1999
G. †Spalacotherium Owen 1854
G. †Symmetrolestes Tsubamoto and Rougier 2004
Fm. †Zhangheotheriidae Rougier et al. 2003
G. †Anebodon Bi et al. 2016
G. †Kiyatherium Maschenko and Lopatin 2002
G. †Maotherium Rougier et al. 2003
G. †Origolestes Mao et al. 2020
G. †Zhangheotherium Hu et al. 1997
Invalid names: Yangotheria Chow and Rich 1982 [empty], Zhangheotheria Averianov et al. 2013 [empty]
No diagnoses are available
No measurements are available
Composition: phosphaticsubp
Maximum body mass: 1374.7 kgs
Minimum body mass: 3 gs
Environment: terrestrialc
Locomotion: actively mobilec
Life habit: scansorialuc
Diet: insectivoreuc
Created: 2005-09-06 19:53:51
Modified: 2005-09-07 19:44:02
Source: s = species, c = class, subp = subphylum, uc = unranked clade
References: Uhen and Gingerich 1995, Hopson 1973, Luo et al. 2003, Legendre 1988, Hendy et al. 2009, Johnson and Madden 1997, Vizcaíno et al. 2010, Carroll 1988

Age range

Maximum range based only on fossils: base of the Longobardian to the top of the Holocene or 242.00000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 235.0 Ma

Collections (21858 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Longobardian242.0 - 235.0Spain (Alicante) Theria sp. (202238)
Rhaetian208.5 - 201.3Germany (Baden-Württemberg) Pantotheria indet. G2 (194663)
Jurassic201.3 - 145.0Morocco Amphilestidae indet. (28846)
Middle Jurassic174.1 - 163.5China (Liaoning) Liaotherium gracile (34696)
Bathonian168.3 - 166.1Morocco (Figuig) Dryolestida indet., Amphitheriidae indet. (176120)
Bathonian168.3 - 166.1United Kingdom (Scotland) Eupantotheria indet. (139746)
Bathonian168.3 - 166.1Russian Federation (Krasnoyarsk) Amphibetulimus krasnolutskii, Dryolestidae indet. (61891)
Bathonian168.3 - 166.1United Kingdom (England) Phascolotherium simpsoni (52507)
Early/Lower Bathonian167.7 - 164.7United Kingdom (England) Eupantotheria indet. (31054)
Late/Upper Bathonian167.7 - 164.7United Kingdom (England) Amphitheriidae indet., Phascolotherium bucklandi, Amphilestidae indet. (224639) Amphitherium sp., Amphitheriidae indet., Palaeoxonodon sp., Eupantotheria indet., Peramuridae indet., Phascolotherium simpsoni (57124) Dryolestidae indet., Amphitherium sp., Palaeoxonodon ooliticus, Eupantotheria indet., Amphitheria indet. (39075)
Middle Bathonian167.7 - 164.7United Kingdom (England) Amphitherium prevostii, Amphitherium rixoni, Didelphys bucklandi, Amphitherium broderipii (59357)
Late/Upper Bathonian - Early/Lower Kimmeridgian167.7 - 150.8China (Liaoning) Juramaia sp. (92421)
Callovian166.1 - 163.5Kyrgyzstan (Jalal-Abad) Paurodontidae indet., Amphitheriidae indet., Tinodontidae indet., Amphilestidae indet. (46545)
Oxfordian163.5 - 157.3China (Liaoning) Juramaia sinensis (114842)
Late/Upper Oxfordian - Kimmeridgian161.2 - 152.1China (Xinjiang) Nanolestes mackennai, Zatheria indet. (47056)
Kimmeridgian157.3 - 152.1Turkey Labes atramentosa (173369)
Kimmeridgian157.3 - 152.1Portugal (Leiria) Drescheratherium acutum, Paurodontidae indet., Henkelotherium guimarotae, Dryolestes leirensis, Guimarotodus inflatus, Krebsotherium lusitanicum, Dryolestidae indet., Nanolestes drescherae (24563)
Kimmeridgian - Early/Lower Tithonian157.3 - 145.0Romania Labes atramentosa (201710 201711)
Kimmeridgian - Tithonian157.3 - 145.0USA (Utah) Araeodon intermissus, Euthlastus cordiformis, Dryolestes priscus, Herpetairus arcuatus, Amblotherium gracilis, Amblotherium debilis, Amblotherium sp., Dryolestidae indet., Spalacotheriidae indet. (53035)
Kimmeridgian - Tithonian157.3 - 145.0USA (Wyoming) Amblotherium megistodon, Dryolestidae indet. (49636) Comotherium richi, Laolestes eminens, Amblotherium gracilis (39431) Dryolestes sp. (13212) Eupantotheria indet. (55333) Tanaodon agilis, Archaeotrigon brevimaxillus, Archaeotrigon sp., Paurodon valens, Malthacolestes osborni, Melanodon oweni, Euthlastus cordiformis, Dryolestes vorax, Laolestes grandis, Stylacodon validus, Asthenodon segnis, Herpetairus humilis, Dryolestes priscus, Miccylotyrans minimus, Pelicopsis dubius, Comotherium richi, Dryolestes arcuatus, Laolestes eminens, Melanodon goodrichi, Laolestes sp., Laodon venustus, Stylacodon gracilis, Dryolestes gracilis, Enneodon crassus, Amphidon aequicrurius, Tinodon bellus, Menacodon rarus, Tinodon lepidus, Phascolodon gidleyi, Aploconodon comoensis, Dryolestes obtusus (12816)