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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

Synonyms
Synonymy list
YearName and author
1922Onychomys pedroensis Gidley p. 125 figs. Pl. 35 fig. 1
1941Onychomys fossilis Hibbard
1980Onychomys fossilis Kurten and Anderson p. 249
1980Onychomys pedroensis Kurten and Anderson p. 249

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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()
Mammaliamorpha
Mammaliaformes
RankNameAuthor
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes()
Trechnotheria
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
EuarchontogliresMurphy et al. 2001
GliriformesWyss and Meng 1996
Glires()
Simplicidentata()
orderRodentiaBowdich 1821
infraorderMyodontaSchaub 1958
superfamilyMuroideaIlliger 1811
Eumuroida
familyCricetidaeFischer 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.

Onychomys pedroensis Gidley 1922
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Invalid names: Onychomys fossilis Hibbard 1941 [synonym]
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
Reproduction: viviparoussubc
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: Hendy et al. 2009, Ji et al. 2002, Samuels and Van Valkenburgh 2008, Lillegraven 1979, Carroll 1988, Nowak 1999

Age range: base of the Gelasian to the top of the Late/Upper Pleistocene or 2.58800 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)
Blancan4.9 - 1.8USA (Arizona) Onychomys pedroensis (19646 19659 20303)
Gelasian2.588 - 1.806USA (Kansas) Onychomys pedroensis (19927)
Irvingtonian1.8 - 0.3USA (Texas) Onychomys jinglebobensis (20530) Onychomys pedroensis (20164 20451)
Irvingtonian1.8 - 0.3USA (Nebraska) Onychomys pedroensis (20523)
Irvingtonian1.8 - 0.3USA (South Dakota) Onychomys pedroensis (20389)
Late/Upper Pleistocene (interglacial)0.126 - 0.0117USA (Kansas) Onychomys jinglebobensis (20605)