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Bensonomys

Osteichthyes - Rodentia - Cricetidae

Synonyms
  • Oryzomys pliocaenicus was named by Hibbard (1939). It is not extant. Its type specimen is Museum of Comparative Zoology, Harvard, No. 6202, a mandible (Left lower mandible with incisor, m1, m2 and m3. ). Its type locality is Edson, which is in a Hemphillian terrestrial horizon in Kansas.

    It was considered a nomen dubium by Baskin (1986).
Synonymy list
YearName and author
1939Oryzomys pliocaenicus Hibbard figs. Fig. 6
1942Bensonomys Gazin p. 489
1978Calomys (Bensonomys) Baskin p. 126
1980Calomys (Bensonomys) Dalquest
1980Bensonomys Kurten and Anderson p. 248
1980Bensonomys Reig
1986Calomys (Bensonomys) Baskin
1987Calomys (Bensonomys) Czaplewski
1992Calomys (Bensonomys) Carranza-Castañeda and Walton p. 74
1994Calomys (Bensonomys) Korth
2002Bensonomys Martin et al.
2007Bensonomys Kelly p. 126
2011Bensonomys Lindsay and Czaplewski

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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()
RankNameAuthor
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—EuarchontogliresMurphy et al. 2001
—GliriformesWyss and Meng 1996
—Glires()
—Simplicidentata()
orderRodentiaBowdich 1821
familyCricetidaeFischer von Waldheim 1817
genusBensonomys

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.

G. †Bensonomys Gazin 1942
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†Bensonomys coffeyi Dalquest 1983
†Bensonomys hershkovitzi Martin et al. 2002
†Bensonomys lindsayi Kelly 2007
†Calomys (Bensonomys) baskini Lindsay and Jacobs 1985
†Calomys (Bensonomys) elachys Lindsay and Jacobs 1985
†Calomys (Bensonomys) winklerorum Carranza-Castañeda and Walton 1992
Invalid names: Oryzomys pliocaenicus Hibbard 1939 [nomen dubium]
Diagnosis
ReferenceDiagnosis
C. L. Gazin 1942Generic characters.-Near Eligmodontia with knoblike process at anterior extremity of masseteric crest on lower jaw, last lower cheek tooth reduced, and sulcus between capsular and coronoid processes.
Removed from Eligmodontia in having deeper lower jaw, dorsa11y placed mental foramen closer to process at extremity of masseteric crest, more brachydont cheek teeth, notch on anterior lobe of first lower chook tooth better developed, lower incisor more procumbent. Genotype - Eligmodontia arizonae Gidley.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingo
Diet: herbivoreo
Reproduction: viviparoussubc
Created: 2005-08-26 14:04:46
Modified: 2005-08-26 16:04:46
Source: o = order, subc = subclass, c = class, subp = subphylum
References: Lillegraven 1979, Carroll 1988, Ji et al. 2002, Nowak 1999, Hendy et al. 2009

Age range: base of the Hemphillian to the top of the Irvingtonian or 9.40000 to 0.21000 Ma

Collections (46 total)


Time interval Ma Country or state Original ID and collection number
Hemphillian9.4 - 4.7USA (Kansas) Oryzomys pliocaenicus (18140)
Hemphillian9.4 - 4.7USA (California) B. sp. (19446) Calomys sp. (19419 19569)
Hemphillian9.4 - 4.7USA (Texas) Calomys coffeyi (18097)
Late/Upper Hemphillian9.4 - 4.7Mexico (Guanajuato) Calomys winklerorum, Calomys elachys, Calomys sp. (18738)
Late/Upper Hemphillian9.4 - 4.7USA (California) Calomys gidleyi (19604)
Late/Upper Hemphillian9.4 - 4.7USA (Nebraska) Calomys sp. (18126 18247 18359)
Late/Upper Hemphillian9.4 - 4.7USA (Nevada) B. lindsayi (75859)
Late/Upper Hemphillian9.4 - 4.7USA (Arizona) Calomys gidleyi, Calomys yazhi (19610)
Late/Upper Hemphillian9.4 - 4.7Mexico (Chihuahua) Calomys baskini, Calomys elachys (18755)
Late/Upper Hemphillian - Blancan9.4 - 1.4USA (Indiana) Peromyscus sp. (18320)
Blancan4.7 - 1.4USA (Nebraska) Calomys meadensis (19963)
Blancan4.7 - 1.4USA (Kansas) B. arizonae (19931) B. meadensis (19938) Calomys eliasi (19934 19935 19936) Cimmaronomys stirtoni (19922)
Blancan4.7 - 1.4USA (Nevada) Calomys arizonae, Calomys coffeyi (20017)
Blancan4.7 - 1.4Mexico (Chihuahua) Calomys baskini, Calomys elachys (20069)
Blancan4.7 - 1.4USA (California) Calomys arizonae (19715) Calomys gidleyi (19718 19719) Calomys meadensis (19705 28237) Calomys sp. (20120)
Blancan4.7 - 1.4USA (Arizona) Calomys arizonae (19620 19624 19628 19638 19650 19656 19657 19658 20303) Calomys arizonae, Calomys elachys (19618) Calomys sp. (19625 19627 19629 19636 19654)
Irvingtonian1.4 - 0.21USA (California) Calomys sp. (20125)
Irvingtonian1.4 - 0.21USA (Arizona) B. sp. (20344)