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Cynomys spenceri

Mammalia - Rodentia - Sciuridae

Taxonomy
Cynomys spenceri was named by Goodwin (1995). It is a 3D body fossil. Its type locality is Angus, which is in an Irvingtonian terrestrial horizon in Nebraska.

Synonymy list
YearName and author
1995Cynomys spenceri Goodwin

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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
RankNameAuthor
classMammalia
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—EuarchontogliresMurphy et al. 2001
—GliriformesWyss and Meng 1996
—Glires()
—Simplicidentata()
orderRodentiaBowdich 1821
superfamilySciuroidea
familySciuridae
tribeMarmotini
genusCynomysRafinesque 1817
speciesspenceri

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.

†Cynomys spenceri Goodwin 1995
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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: 2011-05-12 18:11:35
Modified: 2012-05-14 19:04:35
Source: g = genus, f = family, subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Dunn and Rasmussen 2007, Nowak 1991, Carroll 1988, Ji et al. 2002, Lillegraven 1979

Age range: base of the Irvingtonian to the top of the Rancholabrean or 1.80000 to 0.01200 Ma

Collections (11 total)


Time interval Ma Country or state Original ID and collection number
Irvingtonian1.8 - 0.3USA (Texas) Cynomys ludovicianus (20530)
Irvingtonian1.8 - 0.3USA (Nebraska) Cynomys niobrarius (type locality: 20143) Cynomys spenceri (20480 20497)
Irvingtonian1.8 - 0.3USA (Kansas) Cynomys ludovicianus (20516) Cynomys sp. (20390) Cynomys spenceri (20165 20566)
Rancholabrean0.3 - 0.012USA (Nebraska) Cynomys spenceri (20140 20156)
Late/Upper Pleistocene (interglacial)0.129 - 0.0117USA (Colorado) Cynomys ludovicianus (20617)