PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Entelodon

Mammalia - Entelodontidae

Taxonomy

Entelodon was named by Aymard (1846) [type European E. magnum, not the same as Elotherium magnum; see Effinger 1998 Type species: E. magnus and not magnum ]. Its type is Entelodon magnus.

It was synonymized subjectively with Elotherium by Leidy (1873).

It was assigned to Entelodontidae by Aymard (1848), Scott (1940), Dashzeveg (1965), Carroll (1988), Foss (2007) and Vislobokova (2008).

Species

Anthracothema tsuchiyai, E. deguilheimi, E. diconodon, E. dirus, E. gobiensis, E. ingens, E. magnus (type species), E. major, E. ordosius, E. orientalis

Synonyms

Entelodon diconodon was named by Trofimov (1952).

It was considered a nomen dubium by Lucas and Emry (1996).
Anthracothema tsuchiyai was named by Takai (1961). Its type specimen is UMUT CV-6189, a tooth, and it is a 3D body fossil. Its type locality is Iwasaki Colliery, Joban Coal Field, which is in a Priabonian fluvial sandstone/coal in the Iwaki Formation of Japan.

It was considered a nomen nudum by Tsubamoto et al. (2015).
Entelodon ingens was named by Leidy (1856). It is not a trace fossil.

It was recombined as Elotherium ingens by Leidy (1869), Scott (1895) and Hay (1902); it was recombined as Archaeotherium ingens by Peterson (1909); it was considered a nomen dubium by Troxell (1920), Sinclair (1922) and Scott (1940).

Synonymy list

Year	Name and author
1846	Entelodon Aymard
1848	Entelodon Aymard
1856	Entelodon ingens Leidy p. 164 figs. not figured
1857	Entelodon ingens Leidy p. 89
1869	Elotherium ingens Leidy
1895	Elotherium ingens Scott
1902	Elotherium ingens Hay p. 655
1909	Archaeotherium ingens Peterson
1940	Entelodon Scott p. 427
1952	Entelodon diconodon Trofimov
1961	Anthracothema tsuchiyai Takai
1965	Entelodon Dashzeveg
1988	Entelodon Carroll
2007	Entelodon Foss p. 123
2008	Entelodon Vislobokova

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
subclass	Synapsida
—	Therapsida	()
infraorder	Cynodontia	()
—	Mammaliamorpha

Rank	Name	Author
—	Mammaliaformes
class	Mammalia
—	Theriamorpha	(Rowe 1993)
—	Theriiformes	()
—	Trechnotheria
—	Cladotheria
—	Zatheria
subclass	Tribosphenida	()
subclass	Theria
—	Eutheria	()
—	Placentalia
—	Boreoeutheria
—	Laurasiatheria
—	Scrotifera
—	Euungulata
—	Artiodactylamorpha
—	Artiodactyla	()
superfamily	Entelodontoidea	Lydekker 1883
family	Entelodontidae	Lydekker 1883
genus	Entelodon	Aymard 1846

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.

G. †Entelodon Aymard 1846

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†Entelodon deguilheimi Reppelin 1918

†Entelodon dirus Matthew and Granger 1923

†Entelodon gobiensis Trofimov 1952

†Entelodon magnus Aymard 1846

†Entelodon major Biriukov 1961

†Entelodon ordosius Young and Chow 1956

†Entelodon orientalis Dashzeveg 1965

Invalid names: Anthracothema tsuchiyai Takai 1961 [nomen nudum], Entelodon diconodon Trofimov 1952 [nomen dubium], Entelodon ingens Leidy 1856 [nomen dubium]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

phosphaticsubp

Environment:

terrestrialo

Locomotion:

actively mobilec

Life habit:

ground dwellingf

Diet:

omnivoref

Reproduction:

viviparoussubc

Created:

2005-08-31 14:31:11

Modified:

2005-08-31 16:31:11

Source: f = family, o = order, subc = subclass, c = class, subp = subphylum

References: Lillegraven 1979, Effinger 1998, Hendy et al. 2009, Carroll 1988, Nowak 1999

Age range: base of the Priabonian to the top of the MP 21 or 38.00000 to 28.40000 Ma

Collections (20 total)

Time interval	Ma	Country or state	Original ID and collection number
Middle Eocene	47.8 - 37.71	China (Nei Mongol)	Archaeotherium ordosius (28789)
Priabonian	38.0 - 33.9	Japan	Anthracothema tsuchiyai (13491)
Houldjinian	37.2 - 33.9	China (Nei Mongol)	E. dirus (72147)
Late/Upper Eocene	37.2 - 33.9	Mongolia (Dornogov)	E. orientalis (174716)
Late/Upper Eocene	37.2 - 33.9	China (Nei Mongol)	E. dirus (180942) E. dirus, E. gobiensis (180941) E. gobiensis (182572)
Late/Upper Eocene	37.2 - 33.9	Thailand	E. gobiensis (13127 49078)
Ulangochuian	37.2 - 33.9	China (Nei Mongol)	E. gobiensis (180943)
Early/Lower Oligocene	33.9 - 28.4	France	E. deguilheimi (69805)
Early/Lower Oligocene	33.9 - 28.4	France (Quercy, Midi-Pyrenees Region)	E. magnum (31583)
Early/Lower Oligocene	33.9 - 28.4	China (Nei Mongol)	E. gobiensis (176066)
Early/Lower Oligocene	33.9 - 28.4	France (Auvergne Region)	E. magnum (31767)
Early/Lower Oligocene	33.9 - 28.4	Germany	E. degulhemi (36984)
Early/Lower Oligocene	33.9 - 28.4	France (Limousin)	E. antiquum (31753)
MP 21	33.9 - 28.4	Czech Republic	E. antiquum (91467)
MP 22	33.9 - 28.4	Germany	E. deguilhemi (46097)
MP 23	33.9 - 28.4	France (Provence-Alpes-Côte d?Azur)	E. sp. (73965)
MP 24	33.9 - 28.4	France (Languedoc-Roussillon-Midi-Pyrénées)	E. sp. (182658)