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Onychomys pedroensis

Mammalia - Rodentia - Cricetidae

Taxonomy
Onychomys pedroensis was named by Gidley (1922). Its type specimen is USNM 10506, a mandible (Portion of a left lower jaw carrying the first and last cheek teeth), and it is a 3D body fossil.

Sister species lacking formal opinion data

View classification of included taxa

Synonyms
Synonymy list
YearName and author
1922Onychomys pedroensis Gidley p. 125
1941Onychomys fossilis Hibbard
1980Onychomys fossilis Kurten and Anderson p. 249
1980Onychomys pedroensis Kurten and Anderson p. 249

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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
infraorderMyodontaSchaub 1958
superfamilyMuroideaIlliger 1811
familyCricetidaeFischer von Waldheim 1817
subfamilyCricetinaeFischer von Waldheim 1817
genusOnychomysBaird 1858
speciespedroensis

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 1922Length of the cheek teeth 4.5 millimeters; size somewhat larger than O. leu. ruidosae, which it somewhat more nearly resembles than any other living species. It further differs from that species in its relatively greater depth of jaw, the greater degree to which the masseteric ridge is carried forward, and the somewhat less reduced condition of the last cheek tooth.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingg
Diet: herbivoreo
Created: 2012-05-15 12:48:07
Modified: 2012-05-14 21:48:07
Source: g = genus, o = order, subc = subclass, c = class, subp = subphylum
References: Samuels and Van Valkenburgh 2008, Nowak 1999, Carroll 1988, Hendy et al. 2009, Ji et al. 2002

Age range: base of the Blancan to the top of the Late/Upper Pleistocene or 4.90000 to 0.01170 Ma

Collections (11 total)


Time interval Ma Country or state Original ID and collection number
Blancan4.9 - 1.8USA (Kansas) Onychomys fossilis (19942) Onychomys pedroensis (19927)
Blancan4.9 - 1.8USA (Arizona) Onychomys pedroensis (19646 19659 20303)
Irvingtonian1.8 - 0.3USA (South Dakota) Onychomys pedroensis (20389)
Irvingtonian1.8 - 0.3USA (Texas) Onychomys jinglebobensis (20530) Onychomys pedroensis (20164 20451)
Irvingtonian1.8 - 0.3USA (Nebraska) Onychomys pedroensis (20523)
Late/Upper Pleistocene (interglacial)0.126 - 0.0117USA (Kansas) Onychomys jinglebobensis (20605)