Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Mytonomys robustus

Osteichthyes - Rodentia - Ischyromyidae

Taxonomy
Prosciurus robustus was named by Peterson (1919). Its type specimen is C. M. No. 2925, a mandible (fragment of lower jaw), and it is a 3D body fossil. Its type locality is Myton Pocket, which is in an Uintan terrestrial horizon in the Uinta Formation of Utah. It is the type species of Mytonomys.

It was recombined as Leptotomus robustus by Wilson (1940); it was recombined as Mytonomys robustus by Wood (1956), Wood (1962), Black (1968), Wood (1980), Korth (1988).

Entered
by J. Alroy on 2003-01-23; modified by J. Alroy on 2013-10-27

Synonyms
  • Leptotomus kayi was named by Burke (1934). Its type specimen is CM 11930, a maxilla (fragmentary maxillary with P4-M3 in place), and it is a 3D body fossil.

    It was synonymized subjectively with Mytonomys robustus by Korth (1988).
Synonymy list
YearName and author
1919Prosciurus robustus Peterson p. 65
1934Leptotomus kayi Burke
1940Leptotomus robustus Wilson
1956Mytonomys robustus Wood p. 753
1962Mytonomys robustus Wood
1968Mytonomys robustus Black
1980Mytonomys robustus Wood
1988Mytonomys robustus Korth

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
RankNameAuthor
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—EuarchontogliresMurphy et al. 2001
—GliriformesWyss and Meng 1996
—Glires()
—Simplicidentata()
orderRodentia
familyIschyromyidaeAlston 1876
subfamilyAiluravinaeMichaux 1968
genusMytonomys
speciesrobustus()

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.

†Mytonomys robustus Peterson 1919
show all | hide all
Invalid names: Leptotomus kayi Burke 1934 [synonym]
Diagnosis
No diagnoses are available
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: Nowak 1999, Ji et al. 2002, Lillegraven 1979, Hendy et al. 2009, Carroll 1988

Age range: base of the Late/Upper Uintan to the top of the Duchesnean or 45.90000 to 37.00000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Uintan45.9 - 39.7USA (Texas) Mytonomys robustus (16542)
Uintan45.9 - 39.7USA (Utah) Mytonomys robustus (16531 16654) Prosciurus robustus (type locality: 16607)
Duchesnean39.7 - 37.0USA (Texas) Mytonomys robustus (16838)