Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy External Literature Search Age range and collections

Citellus (Otospermophilus) bensoni

Mammalia - Rodentia - Sciuridae

Taxonomy
Citellus bensoni was named by Gidley (1922). Its type specimen is USNM 10531, a set of teeth (A first or second upper molar of the right side and a last upper molar of the left side), and it is a 3D body fossil.

It was recombined as Citellus (Otospermophilus) bensoni by Bryant (1945); it was recombined as Spermophilus bensoni by Hemming (1956), Shotwell (1968) and Kurten and Anderson (1980).

Synonymy list
YearName and author
1922Citellus bensoni Gidley p. 122 figs. , pl. 34, figs. 3
1945Citellus (Otospermophilus) bensoni Bryant p. 354
1956Spermophilus bensoni Hemming
1963Citellus bensoni Black
1968Spermophilus bensoni Shotwell
1980Spermophilus bensoni Kurten and Anderson p. 213

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Synapsida()
Therapsida()
RankNameAuthor
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
subclassTribosphenida()
infraclassEutheria()
Placentalia
EuarchontogliresMurphy et al. 2001
Glires()
orderRodentia
superfamilySciuroidea
familySciuridae
tribeMarmotini
genusCitellusCuvier 1825
subgenusOtospermophilus
speciesbensoni()

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.

Diagnosis
ReferenceDiagnosis
M. D. Bryant 1945Length of mandibular tooth row about 10.3. Summit of the right upper molar narrow; anterior cingulum, protoloph, and metaloph about equal in length; metaloph with distinct metacone and metaconule, the latter rounded and not connected to the protocone. Posterior part of M3 like that of C. cochisei. MP3 relatively small as compared with M3 in living species, and with an isolated metaconule