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Neohipparion trampasense

Mammalia - Perissodactyla - Equidae

Taxonomy
Hipparion trampasense was named by Edwards (1982). Its type locality is Kendall-Mallory, which is in a Clarendonian terrestrial siliciclastic in California.

It was recombined as Neohipparion trampasense by MacFadden (1984), Hulbert (1987), MacFadden (1998).

Synonymy list
YearName and author
1982Hipparion trampasense Edwards
1984Neohipparion trampasense MacFadden p. 97 figs. 20, 48-50, 70-75, 147, 150;
1987Neohipparion trampasense Hulbert, Jr. p. 814 figs. 2 - 5
1998Neohipparion trampasense MacFadden p. 548

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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
RankNameAuthor
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Panperissodactyla
superorderPerissodactylamorpha
orderPerissodactyla()
superfamilyEquoidea
familyEquidae
subfamilyEquinae
tribeHipparionini
genusNeohipparion
speciestrampasense()

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.

†Neohipparion trampasense Edwards 1982
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Diagnosis
ReferenceDiagnosis
R. C. Hulbert 1987Medium sized hipparionine; UTRL and ltrl about 110 to 130 mm. Unworn M12 MSCH about 60 mm; more hypsodont than N. affine. Fossettes moderately complex; pli caballin strong, often double or bifurcated on premolars; metastyle present but much weaker than in N. eurystyle; pli caballinid persistently present on p2-p4, on m 1-m3 in early wear-stages. DPOF very shallow depression set well anterior to lacrimal bone.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingsubf
Diet: grazerg
Reproduction: viviparoussubc
Created: 2009-01-04 10:29:14
Modified: 2009-01-04 12:54:35
Source: g = genus, subf = subfamily, subc = subclass, c = class, subp = subphylum
References: MacFadden and Cerling 1996, Lillegraven 1979, Carroll 1988, Ji et al. 2002, Hendy et al. 2009, MacFadden 1998

Age range: base of the Clarendonian to the top of the Miocene or 12.50000 to 5.33300 Ma

Collections (24 total)


Time interval Ma Country or state Original ID and collection number
Miocene23.04 - 5.333USA (California) Hipparion trampasense (19379) Nannippus tehonensis (19584) Neohipparion trampasense (19570)
Miocene23.04 - 5.333USA (Florida) Neohipparion trampasense (18521 18574)
Middle Miocene15.98 - 11.63USA (Florida) Neohipparion trampasense (161381)
Clarendonian12.5 - 9.4USA (Nebraska) Neohipparion trampasense (18135 18171 18214 18221 18227 18231 18245 18333 18425 18496)
Clarendonian12.5 - 9.4USA (California) Nannippus sp. (19378) Nannippus tehonensis (type locality: 19391)
Late/Upper Clarendonian12.5 - 9.4USA (Florida) Neohipparion trampasense (18554)
Tortonian - Zanclean11.63 - 3.6USA (Florida) Neohipparion trampasense (18568)
Hemphillian9.4 - 4.7USA (Kansas) Neohipparion trampasense (18415)
Hemphillian9.4 - 4.7USA (Florida) Neohipparion eurystyle (18560 18564)
early Early Hemphillian - late Early Hemphillian9.4 - 4.7USA (Florida) Neohipparion sp. (18539)