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Pseudhipparion

Mammalia - Perissodactyla - Equidae

Taxonomy
Pseudhipparion was named by Ameghino (1904). It is not extant.

It was synonymized subjectively with Nannippus by Stirton (1940).

It was assigned to Equidae by Ameghino (1904), Webb (1969), Webb and Hulbert (1986) and Carroll (1988); to Hippotheriini by Prothero and Schoch (1989); and to Hipparionini by Kelly (1995), MacFadden (1998) and May (2019).

Synonyms
Synonymy list
YearName and author
1904Pseudhipparion Ameghino
1955Griphippus Quinn p. 42
1969Pseudhipparion Webb
1986Pseudhipparion Webb and Hulbert, Jr.
1988Pseudhipparion Carroll
1989Pseudhipparion Prothero and Schoch p. 532
1995Pseudhipparion Kelly p. 26
1998Pseudhipparion MacFadden p. 547
2019Pseudhipparion May

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
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
tribeHipparionini
genusPseudhipparion

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.

G. †Pseudhipparion Ameghino 1904
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Pseudhipparion gratum Leidy 1869
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Invalid names: Neohipparion niobrarense Gidley 1906 [synonym]
Pseudhipparion hessei Webb and Hulbert, Jr. 1986
Pseudhipparion simpsoni Webb and Hulbert, Jr. 1986
Pseudhipparion skinneri Webb and Hulbert, Jr. 1986
Invalid names: Griphippus Quinn 1955 [synonym]
Diagnosis
ReferenceDiagnosis
J. H. Quinn 1955 (Griphippus)Slightly larger than Calippus; protocones oval and connected to partly disconnected; hypoconal groove closed nearly to summit of crowns; para- stylid present; pli cabal'linid absent or vestigial.