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Arretotherium leptodus

Mammalia - Anthracotheriidae

Taxonomy
Ancodon leptodus was named by Matthew (1909) [unsure whether species belongs to "Ancodon" or Bothriodon]. Its type specimen is AMNH 13005, a partial skeleton (an incomplete skull with lower jaws and parts of skeleton), and it is a 3D body fossil. Its type locality is AMNH Rosebud 21, which is in a Harrisonian terrestrial horizon in the Harrison Formation of South Dakota.

It was considered a nomen vanum by Macdonald (1956); it was recombined as Arretotherium leptodus by Macdonald (1963), Macdonald (1970), Kron and Manning (1998) and Albright (1999).

Synonymy list
YearName and author
1909Ancodon leptodus Matthew p. 1
1963Arretotherium leptodus Macdonald
1970Arretotherium leptodus Macdonald
1998Arretotherium leptodus Kron and Manning
1999Arretotherium leptodus Albright

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
subclassSynapsida
Therapsida()
infraorderCynodontia()
Mammaliamorpha
RankNameAuthor
Mammaliaformes
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes()
Trechnotheria
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
Laurasiatheria
Scrotifera
Euungulata
Artiodactylamorpha
Artiodactyla()
Whippomorpha
superfamilyHippopotamoideaGray 1821
familyAnthracotheriidaeLeidy 1869
genusArretotherium
speciesleptodus()

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.

Arretotherium leptodus Matthew 1909
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialo
Locomotion: actively mobilec
Life habit: ground dwellingg
Diet: grazerg
Reproduction: viviparoussubc
Created: 2005-08-31 14:33:30
Modified: 2005-09-02 12:04:33
Source: g = genus, o = order, subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Lillegraven 1979, Carroll 1988, Kron and Manning 1998, Nowak 1999

Age range: Harrisonian or 24.80000 to 20.43000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Arikareean30.8 - 20.43USA (South Dakota) Arretotherium sp. (173643)
Harrisonian24.8 - 20.43USA (South Dakota) Arretotherium leptodus (type locality: 17458)