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Dinohippus leardi

Mammalia - Perissodactyla - Equidae

Taxonomy
Pliohippus leardi was named by Drescher (1941). Its type locality is North Tejon Hills, which is in a Tortonian terrestrial horizon in the Chanac Formation of California.

It was synonymized subjectively with Pliohippus fairbanksi by MacFadden (1998); it was recombined as Dinohippus leardi by Whistler and Burbank (1992), Hulbert (1993) and Kelly (1998).

Synonymy list
YearName and author
1941Pliohippus leardi Drescher
1955Pliohippus leardi Quinn p. 13
1992Dinohippus leardi Whistler and Burbank
1993Dinohippus leardi Hulbert, Jr.
1998Dinohippus leardi Kelly p. 20

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

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.

†Dinohippus leardi Drescher 1941
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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: browserg
Reproduction: viviparoussubc
Created: 2009-01-04 10:30:04
Modified: 2009-01-04 12:59:11
Source: g = genus, subf = subfamily, subc = subclass, c = class, subp = subphylum
References: Lillegraven 1979, MacFadden and Cerling 1996, Carroll 1988, Ji et al. 2002, Hendy et al. 2009, MacFadden 1998

Age range: base of the Hemphillian to the top of the Clarendonian or 10.30000 to 9.40000 Ma

Collections (11 total)


Time interval Ma Country or state Original ID and collection number
Clarendonian12.5 - 9.4USA (California) Dinohippus leardi (19323 19324 19384 19517) Pliohippus leardi (19185 19310 19322)
Clarendonian12.5 - 9.4USA (Nevada) Dinohippus leardi (229145)
Tortonian11.62 - 7.246USA (California) Pliohippus leardi (type locality: 19466 52210)
Hemphillian10.3 - 4.9USA (California) Dinohippus leardi (19419)