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Peromyscus minimus

Mammalia - Rodentia - Cricetidae

Taxonomy
Peromyscus minimus was named by Gidley (1922). Its type specimen is USNM 10500, a mandible (portion of a left lower jaw carrying all the teeth), and it is a 3D body fossil.

It was recombined as Baiomys minimus by Hibbard (1941) and Kurten and Anderson (1980).

Synonymy list
YearName and author
1922Peromyscus minimus Gidley
1941Baiomys minimus Hibbard
1980Baiomys minimus Kurten and Anderson p. 248

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
OlfactoresJefferies 1991
subphylumVertebrata
Gnathostomata()
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
infraorderMyodontaSchaub 1958
superfamilyMuroideaIlliger 1811
familyCricetidaeFischer von Waldheim 1817
subfamilyCricetinaeFischer von Waldheim 1817
genusPeromyscusGloger 1841
speciesminimus

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
J. W. Gidley 1922Size very small, lenght of the cheektooth series 2.6 millimeters; cheek-tooth cusps depressed, with well-marked cingula at the entrance of the external valley, and with tendency to inclose te internal ones bij an uprising of the inner enamel wall between the cusps; posterior lobe of the first cheek tooth, relatively naarow but two-cusped at the summit; posterior lobe of the last cheek tooth small almost as much reduced as in Onychomys.