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Spermophilus rexroadensis

Osteichthyes - Rodentia - Sciuridae

Taxonomy
Citellus rexroadensis was named by Hibbard (1941). It is a 3D body fossil. Its type locality is Rexroad KU Locality 3, which is in a Blancan terrestrial horizon in the Rexroad Formation of Kansas.

It was recombined as Spermophilus rexroadensis by Hemming (1956), Kurten and Anderson (1980).

Synonymy list
YearName and author
1941Citellus rexroadensis Hibbard
1956Spermophilus rexroadensis Hemming
1980Spermophilus rexroadensis Kurten and Anderson p. 213

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
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
speciesrexroadensis()

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 rexroadensis Hibbard 1941
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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: Lillegraven 1979, Hendy et al. 2009, Carroll 1988, Ji et al. 2002, Nowak 1991, Fernández et al. 2000

Age range: base of the Late/Upper Hemphillian to the top of the Blancan or 9.40000 to 1.40000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Hemphillian9.4 - 4.7USA (Oklahoma) Citellus rexroadensis (18076)
Blancan4.7 - 1.4USA (Kansas) Citellus rexroadensis (19931) Spermophilus rexroadensis (type locality: 19936)