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Onychomys gidleyi

Mammalia - Rodentia - Cricetidae

Taxonomy
Onychomys gidleyi was named by Hibbard (1941). Its type specimen is KUMVP 4670, a mandible (sin with i1, m1-m3), and it is a 3D body fossil. Its type locality is Rexroad KU Locality 3, which is in a Blancan terrestrial horizon in the Rexroad Formation of Kansas.

Sister species lacking formal opinion data
O. larabeei

Synonymy list
YearName and author
1941Onychomys gidleyi Hibbard
1980Onychomys gidleyi 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
RankNameAuthor
—Mammaliaformes
classMammalia
—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
speciesgidleyi

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 gidleyi Hibbard 1941
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Diagnosis
ReferenceDiagnosis
C. W. Hibbard 1941A grasshopper mouse the size of Onychomys leucogaster arcticeps (Rhoads). Cusps not as high and entostylids better developed. Posterior lobe of m3, consisting of hypoconid and entoconid, larger and slightly lower than anterior cusps; more so than in recent species. Mental foramen situated farther down on the side of the ramus than in Onychomys leucogaster.
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, Carroll 1988, Nowak 1999, Samuels and Van Valkenburgh 2008, Ji et al. 2002, Lillegraven 1979

Age range: Blancan or 4.90000 to 1.80000 Ma

Collections (7 total)


Time interval Ma Country or state Original ID and collection number
Blancan4.9 - 1.8USA (California) Onychomys gidleyi (19715)
Blancan4.9 - 1.8USA (Texas) Onychomys gidleyi (20060)
Blancan4.9 - 1.8USA (Kansas) Onychomys gidleyi (19931 19935 type locality: 19936 19940) Onychomys larrabeei (19922)