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Systemodon

Osteichthyes - Perissodactyla

Taxonomy
Systemodon was named by Cope (1881).

It was synonymized subjectively with Hyracotherium by Hay (1899), Granger (1908), Troxell (1922), Wood (1934), Toohey (1959), Radinsky (1963); it was synonymized subjectively with Eohippus by Hay (1902), Peterson (1919); it was synonymized subjectively with Homogalax by Wood (1927), Colbert and Schoch (1998).

It was assigned to Tapiridae by Scott (1913); to Equoidea by Prothero and Schoch (1989); to Isectolophidae by Cope (1881), Froehlich (1999); and to Tapiromorpha by Froehlich (2002).

Synonymy list
YearName and author
1881Systemodon Cope
1913Systemodon Scott p. 291
1989Systemodon Prothero and Schoch p. 531
1999Systemodon Froehlich
2002Systemodon Froehlich pp. 183 - 185

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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
—Laurasiatheria
—Scrotifera
—Euungulata
—Panperissodactyla
superorderPerissodactylamorpha
orderPerissodactyla()
—Tapiromorpha(Haeckel 1873)
genusSystemodon

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. †Systemodon Cope 1881
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†Systemodon tapirinus Cope 1875
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Invalid names: Systemodon cristatus Wortman 1896 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingsubo
Diet: browsersubo
Reproduction: viviparoussubc
Created: 2005-08-31 15:02:20
Modified: 2005-08-31 17:02:20
Source: subo = suborder, subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Colbert and Schoch 1998, Ji et al. 2002, Carroll 1988, Lillegraven 1979

Age range: Wasatchian or 56.00000 to 51.10000 Ma

Collections (7 total)


Time interval Ma Country or state Original ID and collection number
Wasatchian56.0 - 51.1USA (New Mexico) Hyracotherium tapirinum (15439 15441 15663)
Wasatchian56.0 - 51.1USA (Wyoming) Hyracotherium cristatum (15687 15783 15807) S. sp. (15542)