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Subhyracodon mitis

Mammalia - Perissodactyla - Rhinocerotidae

Taxonomy
Aceratherium mite was named by Cope (1875) [report for 1893, published 1894]. It is a 3D body fossil. Its type locality is Horsetail Creek, which is in a Chadronian terrestrial horizon in the White River Formation of Colorado.

It was recombined as Caenopus mitis by Cope (1880), Hay (1902), Osborn and Matthew (1909), Cope and Matthew (1915), Troxell (1921), Wood (1927), Wood (1929), Stock (1933) and Scott (1941); it was recombined as Subhyracodon mitis by Lucas et al. (1981), Prothero and Manning (1987), Prothero (2005) and Albright et al. (2019).

Synonyms
Synonymy list
YearName and author
1875Aceratherium mite Cope p. 493
1880Caenopus mitis Cope
1885Aceratherium pumilum Cope p. 163
1886Caenopus pumilus Cope
1891Caenopus pumilus Cope p. 19
1898Aceratherium copei Osborn
1898Aceratherium mite Osborn
1902Caenopus copei Hay p. 643
1902Caenopus mitis Hay p. 643
1908Aceratherium mite Lambe
1909Caenopus copei Osborn and Matthew
1909Caenopus mitis Osborn and Matthew
1915Caenopus mitis Cope and Matthew pp. Plate CV
1920Caenopus copei Peterson
1921Caenopus copei Troxell
1921Caenopus mitis Troxell
1927Caenopus mitis Wood
1927Subhyracodon copei Wood
1929Caenopus mitis Wood p. 67
1933Caenopus mitis Stock
1933Subhyracodon copei Stock
1941Caenopus mitis Scott
1941Subhyracodon copei Scott
1981Subhyracodon mitis Lucas and et al.
1987Subhyracodon mitis Prothero and Manning
2005Subhyracodon mitis Prothero p. 46
2019Subhyracodon mitis Albright et al. p. 184

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—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
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Panperissodactyla
superorderPerissodactylamorpha
orderPerissodactyla()
—Tapiromorpha(Haeckel 1873)
—Ceratomorpha(Wood 1937)
superfamilyRhinocerotoidea
familyRhinocerotidae
genusSubhyracodon
speciesmitis()

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.

†Subhyracodon mitis Cope 1875
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Invalid names: Aceratherium copei Osborn 1898 [synonym], Aceratherium pumilum Cope 1885 [synonym], Caenopus pumilus Cope 1886 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: browserf
Reproduction: viviparoussubc
Created: 2005-06-08 10:11:09
Modified: 2005-08-31 17:08:31
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Nowak 1991, Ji et al. 2002, Lillegraven 1979, Hendy et al. 2009, Carroll 1988

Age range: base of the Chadronian to the top of the Orellan or 37.20000 to 33.30000 Ma

Collections (14 total)


Time interval Ma Country or state Original ID and collection number
Priabonian38.0 - 33.9USA (South Carolina) Subhyracodon mitis (206997)
Chadronian37.2 - 33.9USA (Montana) Caenopus mitis (16925 16946) Subhyracodon mitis (17010)
Chadronian37.2 - 33.9USA (South Dakota) Caenopus mitis (16885 16938 17006)
Chadronian37.2 - 33.9Canada (Saskatchewan) Caenopus pumilus (101961)
Chadronian37.2 - 33.9USA (Wyoming) Subhyracodon mitis (16942 16986)
Chadronian37.2 - 33.9USA (Nebraska) Subhyracodon mitis (17025)
Chadronian37.2 - 33.9USA (Colorado) Aceratherium mite (type locality: 16977)
Orellan33.9 - 33.3USA (South Dakota) Aceratherium mite (17141 17153)