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Dinohippus leidyanus

Osteichthyes - Perissodactyla - Equidae

Taxonomy
Pliohippus leidyanus was named by Osborn (1918). Its type specimen is AMNH 17724, a partial skeleton (Skull, jaws, vertebrre, fore and hind limbs, considerable portions of the ribs and other parts of the skeleton, all of one individual), and it is a 3D body fossil. Its type locality is ZX Bar, which is in a Hemphillian terrestrial horizon in the Snake Creek Formation of Nebraska.

It was recombined as Pliohippus (Pliohippus) leidyanus by Stirton (1940); it was recombined as Dinohippus leidyanus by Quinn (1955), Skinner et al. (1977), MacFadden (1984), Azzaroli (1988), Kelly and Lander (1988), Kelly (1995), Prado and Alberdi (1996), MacFadden (1998), Kelly (1998), Kelly (2000).

Synonyms
Synonymy list
YearName and author
1918Pliohippus leidyanus Osborn
1921Pliohippus edensis Frick
1921Pliohippus osborni Frick
1940Pliohippus (Astrohippus) osborni Stirton p. 192
1940Pliohippus (Pliohippus) edensis Stirton p. 192
1940Pliohippus (Pliohippus) leidyanus Stirton p. 192
1955Dinohippus leidyanus Quinn p. 43
1955Hippotigris osborni Quinn p. 46
1977Dinohippus leidyanus Skinner et al.
1982Dinohippus osborni May and Repenning
1984Dinohippus leidyanus MacFadden
1988Dinohippus leidyanus Azzaroli
1988Dinohippus edensis Kelly and Lander
1988Dinohippus leidyanus Kelly and Lander
1988Dinohippus osborni Kelly and Lander
1995Dinohippus leidyanus Kelly p. 14
1996Dinohippus leidyanus Prado and Alberdi p. 676
1998Dinohippus leidyanus Kelly
1998Dinohippus edensis MacFadden p. 551
1998Dinohippus leidyanus MacFadden p. 551
1998Dinohippus osborni MacFadden p. 551
2000Dinohippus leidyanus Kelly

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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()
infraorderCynodontia()
—Mammaliamorpha
RankNameAuthor
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Panperissodactyla
superorderPerissodactylamorpha
orderPerissodactyla()
superfamilyEquoidea
familyEquidae
subfamilyEquinae
tribeEquini
genusDinohippus
speciesleidyanus()

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 leidyanus Osborn 1918
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Invalid names: Pliohippus edensis Frick 1921 [synonym], Pliohippus osborni Frick 1921 [synonym]
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 18:59:11
Source: g = genus, subf = subfamily, subc = subclass, c = class, subp = subphylum
References: Lillegraven 1979, Ji et al. 2002, Carroll 1988, MacFadden and Cerling 1996, Hendy et al. 2009, MacFadden 1998

Age range: base of the Hemphillian to the top of the Miocene or 9.40000 to 5.33300 Ma

Collections (15 total)


Time interval Ma Country or state Original ID and collection number
Miocene23.04 - 5.333USA (California) Pliohippus osborni (19376)
Hemphillian9.4 - 4.7USA (Nebraska) Dinohippus leidyanus (18033 18086 18201 18323) Dinohippus sp. (18441)
Hemphillian9.4 - 4.7USA (Kansas) Pliohippus pernix (18140)
Hemphillian9.4 - 4.7USA (Oklahoma) Pliohippus interpolatus (18304)
Late/Upper Hemphillian9.4 - 4.7USA (Nebraska) Dinohippus leidyanus (18247 type locality: 18499)
Late/Upper Hemphillian9.4 - 4.7USA (Arizona) Dinohippus leidyanus (19612) Equini indet. (19514)
Late/Upper Hemphillian9.4 - 4.7Canada (Alberta) Dinohippus leidyanus (18757)
Late/Upper Hemphillian9.4 - 4.7USA (California) Dinohippus leidyanus (19445) Pliohippus edensis (19604)