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Acritohippus quinni

Mammalia - Perissodactyla - Equidae

Taxonomy
Acritohippus quinni was named by Kelly (1995). Its type specimen is UCMP 65338, a partial skull (partial skull), and it is a 3D body fossil. Its type locality is Upper Dry Canyon 1, which is in a Barstovian terrestrial horizon in the Caliente Formation of California.

Synonymy list
YearName and author
1995Acritohippus quinni Kelly p. 10

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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
—Mammaliaformes
RankNameAuthor
classMammalia
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Panperissodactyla
superorderPerissodactylamorpha
orderPerissodactyla()
superfamilyEquoidea
familyEquidae
subfamilyEquinae
genusAcritohippus
speciesquinni

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.

†Acritohippus quinni Kelly 1995
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingsubf
Diet: grazersubf
Diet 2: browsersubf
Reproduction: viviparoussubc
Created: 2005-08-31 14:56:53
Modified: 2005-08-31 16:56:53
Source: subf = subfamily, subc = subclass, c = class, subp = subphylum
References: Lillegraven 1979, Nowak 1991, Carroll 1988, MacFadden 1998, Hendy et al. 2009, Ji et al. 2002

Age range: Barstovian or 16.30000 to 12.50000 Ma

Collections (17 total)


Time interval Ma Country or state Original ID and collection number
Miocene23.03 - 5.333USA (California) Acritohippus quinni (19426) Stylonus sp. (19326 19334 19597 19607)
Hemingfordian - Barstovian20.43 - 12.5USA (California) Merychippus sp. (19201)
Barstovian16.3 - 12.5USA (California) Stylonus sp. (19292 19327 19329 19330 19331 19332 19392 19498 type locality: 19587 19588 19590)