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Sigmodon minor

Mammalia - Rodentia - Cricetidae

Taxonomy
Sigmodon minor was named by Gidley (1922). Its type specimen is USNM 10512, a mandible (Portion of a left lower jaw containing complete dentition ), and it is a 3D body fossil.

It was synonymized subjectively with Sigmodon medius by Kurten and Anderson (1980).

Synonyms
Synonymy list
YearName and author
1922Sigmodon minor Gidley p. 125 figs. Plate XXXV, figures 4, 5
1922Sigmodon medius Gidley p. 126 figs. Plate XXXV, figures 6, 7
1937Sigmodon intermedius Hibbard
1941Sigmodon hilli Hibbard
1979Sigmodon medius Martin
1980Sigmodon medius Kurten and Anderson p. 250
1984Sigmodon medius Galusha et al.
1987Sigmodon medius Czaplewski
1987Sigmodon medius Tomida
1995Sigmodon medius Morgan and White
1997Sigmodon medius Mezzabotta

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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
familyCricetidaeFischer von Waldheim 1817
tribeSigmodontiniWagner 1843
genusSigmodonSay and Ord 1825
speciesminor

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.

†Sigmodon minor Gidley 1922
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Invalid names: Sigmodon intermedius Hibbard 1937 [synonym], Sigmodon medius Gidley 1922 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingg
Diet: herbivoreo
Reproduction: viviparoussubc
Created: 2012-05-15 12:54:46
Modified: 2012-05-14 21:54:46
Source: g = genus, o = order, subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Ji et al. 2002, Carroll 1988, Nowak 1999, Samuels and Van Valkenburgh 2008, Lillegraven 1979

Age range: base of the Gelasian to the top of the Early/Lower Pleistocene or 2.58000 to 0.77400 Ma

Collections (78 total)


Time interval Ma Country or state Original ID and collection number
Blancan4.7 - 1.4USA (Colorado) Sigmodon minor (19744)
Blancan4.7 - 1.4USA (Nebraska) Sigmodon medius (19963)
Blancan4.7 - 1.4USA (Florida) Sigmodon medius (19752 19753)
Blancan4.7 - 1.4USA (Arizona) Sigmodon medius (19618 19620 19621 19624 19628 19638 19642 19653 19654 19656 19657 19658 19659 19660) Sigmodon minor (19646 19650 20303)
Blancan4.7 - 1.4USA (Kansas) Sigmodon intermedius (19925 19934 19935 19936 19938) Sigmodon minor (19941 19942 19943 19945 19947)
Blancan4.7 - 1.4USA (Texas) Sigmodon medius (20023 20030 20032 20060)
Blancan4.7 - 1.4USA (California) Sigmodon medius (19733 19734 19736 19737 19738 19740 19741 19742) Sigmodon minor (19708 19715 20086 20093 20099 20101 20103 20106 20107 20108 20110 20112 20113 20116 20119 20120 20121)
Blancan - Irvingtonian4.7 - 0.21USA (California) Sigmodon minor (20298)
Gelasian2.58 - 1.8USA (Kansas) Sigmodon hilli (19927)
Early/Lower Pleistocene2.58 - 0.774USA (Florida) Sigmodon medius (98313)
Irvingtonian1.4 - 0.21USA (Arizona) Sigmodon minor (20341 20344)
Irvingtonian1.4 - 0.21USA (California) Sigmodon medius (20378) Sigmodon minor (20123 20124 20126 20128 20176 20177 20186 20187 20191 28221 28223)
Irvingtonian1.4 - 0.21USA (Florida) Sigmodon minor (20308)