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Ophiomys fricki

Mammalia - Rodentia - Cricetidae

Taxonomy
Ophiomys fricki was named by Hibbard (1972) [in Skinner and Hibbard]. Its type specimen is UMMP V57288, a tooth (m1 inf. sin.), and it is a 3D body fossil.

It was recombined as Mimomys fricki by Repenning (1987) and Korth (1994).

Synonymy list
YearName and author
1972Ophiomys fricki Hibbard p. 99 figs. fig. 42 A-C
1980Ophiomys fricki Kurten and Anderson p. 255
1987Mimomys fricki Repenning
1994Mimomys fricki Korth
2002Ophiomys fricki Martin et al.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
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
subfamilyArvicolinae()
genusOphiomysForsyth-Major 1902
speciesfrickiHibbard 1972

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.

Ophiomys fricki Hibbard 1972
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Diagnosis
ReferenceDiagnosis
C. W. Hibbard 1972Small vole about size of Nebraskomys mcgrewi, with rooted molars lacking cement; m1 consisting of posterior loop, five alternating and confluent triangles, and simple anterior loop; no dentine tract at base of apex of first labial triangle (second alternating triangle), apices of lingual reentrant angles broad, at right angle to longitudinal occlusal plane of tooth.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingo
Diet: herbivoreo
Reproduction: viviparoussubc
Created: 2005-08-26 14:04:46
Modified: 2005-08-26 16:04:46
Source: o = order, subc = subclass, c = class, subp = subphylum
References: Lillegraven 1979, Nowak 1999, Carroll 1988, Hendy et al. 2009, Ji et al. 2002

Age range: Blancan or 4.90000 to 1.80000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Blancan4.9 - 1.8USA (Nebraska) Ophiomys fricki (19963)