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Spermophilus matthewi

Mammalia - Rodentia - Sciuridae

Taxonomy
Citellus matthewi was named by Black (1963). It is a 3D body fossil. Its type locality is Aphelops Draw Quarries, which is in a Hemphillian terrestrial horizon in the Snake Creek Formation of Nebraska.

It was recombined as Otospermophilus matthewi by Barnosky (1986); it was recombined as Spermophilus matthewi by Shotwell (1968), Wilson and Reeder (1993), Korth (1994).

Sister species lacking formal opinion data
S. matachisensis

Synonymy list
YearName and author
1963Citellus matthewi Black
1968Spermophilus matthewi Shotwell
1986Otospermophilus matthewi Barnosky
1993Spermophilus matthewi Wilson and Reeder
1994Spermophilus matthewi Korth

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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()
RankNameAuthor
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—EuarchontogliresMurphy et al. 2001
—GliriformesWyss and Meng 1996
—Glires()
—Simplicidentata()
orderRodentiaBowdich 1821
superfamilySciuroidea
familySciuridae
tribeMarmotini
genusSpermophilusCuvier 1825
speciesmatthewi()

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.

†Spermophilus matthewi Black 1963
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: semifossorialg
Diet: granivoref
Diet 2: frugivoref
Reproduction: viviparoussubc
Created: 2012-05-15 10:05:16
Modified: 2012-05-14 21:55:07
Source: g = genus, f = family, subc = subclass, c = class, subp = subphylum
References: Carroll 1988, Lillegraven 1979, Nowak 1991, Hendy et al. 2009, Ji et al. 2002, Fernández et al. 2000

Age range: Hemphillian or 9.40000 to 4.70000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Hemphillian9.4 - 4.7USA (Nebraska) Spermophilus matthewi (type locality: 18033)
Late/Upper Hemphillian9.4 - 4.7USA (Nebraska) Spermophilus matthewi (18126 18359)