Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy External Literature Search Age range and collections

Dinohippus interpolatus

Mammalia - Perissodactyla - Equidae

Taxonomy
Hippidium interpolatum was named by Cope (1893) [also said to be 1886, and also said originally to have been placed in Hippidion]. It is a 3D body fossil. Its type locality is Goodnight's, which is in a Hemphillian terrestrial horizon in the Goodnight Beds Formation of Texas.

It was recombined as Protohippus interpolatus by Gidley (1903) and Matthew (1909); it was recombined as Pliohippus interpolatus by Trouessart (1905), Gidley (1907), Osborn (1918), Matthew and Stirton (1930) and Savage (1941); it was recombined as Pliohippus (Pliohippus) interpolatus by Stirton (1940); it was considered a nomen dubium by Azzaroli (1988) and Macdonald (1992); it was recombined as Dinohippus interpolatus by Quinn (1955), Webb (1969), Dalquest (1983), Kelly and Lander (1988), Kelly (1995), Prado and Alberdi (1996), MacFadden (1998), Kelly (1998) and Kelly (2000).

Synonymy list
YearName and author
1893Hippidium interpolatum Cope p. 42
1903Protohippus interpolatus Gidley
1905Pliohippus interpolatus Trouessart
1907Pliohippus interpolatus Gidley
1909Protohippus interpolatus Matthew
1918Pliohippus interpolatus Osborn p. 158 figs. Plates 24.6, 25.13. Text Fig. 126
1930Pliohippus interpolatus Matthew and Stirton
1940Pliohippus (Pliohippus) interpolatus Stirton p. 192
1941Pliohippus interpolatus Savage
1955Dinohippus interpolatus Quinn p. 43
1969Dinohippus interpolatus Webb
1983Dinohippus interpolatus Dalquest
1988Dinohippus interpolatus Kelly and Lander
1995Dinohippus interpolatus Kelly p. 26
1996Dinohippus interpolatus Prado and Alberdi p. 676
1998Dinohippus interpolatus Kelly
1998Dinohippus interpolatus MacFadden p. 551
2000Dinohippus interpolatus Kelly

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Synapsida()
Therapsida()
infraorderCynodontia()
RankNameAuthor
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
subclassTribosphenida()
infraclassEutheria()
Placentalia
orderPerissodactyla()
suborderLophodontomorpha
infraorderEuperissodactyla
Hippomorpha
superfamilyEquoidea
familyEquidae
subfamilyEquinaeSteinmann and Döderlein 1890
tribeEquini
genusDinohippus
speciesinterpolatus()

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.

Diagnosis
ReferenceDiagnosis
H. F. Osborn 1918(Cope, 1893, Osborn, 1918) (1) Distinguished from corresponding teeth of Prowhippus by the small
size of protocone and hypocone; (2) protocone uniting with protoconule; (3) a pli caballin and crochet fold in prefossette, (4) single enamel fold in postfossette; (5) hypostyle region simple, fossettes relatively large, borders relatively simple; (6) crowns curved transversely but not anteroposteriorly; (7) cement abundant.