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Nannippus westoni

Mammalia - Perissodactyla - Equidae

Taxonomy
Merychippus westoni was named by Simpson (1930). Its type locality is Cummer Lumber Company Phosphate Mine, which is in a Hemphillian terrestrial horizon in Florida.

It was recombined as Merychippus (Merychippus) westoni by Stirton (1940); it was recombined as Nannippus westoni by Hulbert (1993) and MacFadden (1998).

Synonymy list
YearName and author
1930Merychippus westoni Simpson
1940Merychippus (Merychippus) westoni Stirton p. 181
1993Nannippus westoni Hulbert, Jr. p. 352 figs. 1, 3 - 4
1998Nannippus westoni MacFadden p. 549

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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
tribeHipparionini
genusNannippus(Matthew 1926)
specieswestoni()

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.

Nannippus westoni Simpson 1930
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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: grazersubg
Reproduction: viviparoussubc
Created: 2009-01-04 10:28:56
Modified: 2009-01-04 12:56:41
Source: subg = subgenus, subf = subfamily, subc = subclass, c = class, subp = subphylum
References: Ji et al. 2002, Hendy et al. 2009, Carroll 1988, MacFadden and Cerling 1996, MacFadden 1998, Lillegraven 1979

Age range: base of the Tortonian to the top of the late Early Hemphillian or 11.62000 to 4.90000 Ma

Collections (9 total)


Time interval Ma Country or state Original ID and collection number
Middle Miocene15.97 - 11.608USA (Florida) Nannippus westoni (161381)
Late/Upper Clarendonian13.6 - 10.3USA (Florida) Nannippus minor (18554)
Tortonian - Zanclean11.62 - 3.6USA (Florida) Nannippus westoni (18568)
Hemphillian10.3 - 4.9USA (Florida) Hipparion minor (18563) Merychippus westoni (type locality: 18525) Nannippus westoni (18560)
Late/Upper Hemphillian10.3 - 4.9USA (Florida) Nannippus westoni (18533)
early Early Hemphillian - late Early Hemphillian10.3 - 4.9USA (Florida) Nannippus minor (18539)
Late/Upper Hemphillian - Zanclean10.3 - 3.6USA (Florida) Nannippus minor (18535)