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Paramys compressidens

Mammalia - Rodentia - Ischyromyidae

Taxonomy
Paramys compressidens was named by Peterson (1919). Its type specimen is C. M. No. 2920, a mandible (lower jaw with cheek-teeth), 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 was recombined as Ischyrotomus compressidens by Gidley (1919), Hay (1930), Wilson (1940) and Wood (1962).

Sister species lacking formal opinion data
P. woodi

Synonymy list
YearName and author
1919Ischyrotomus compressidens Gidley
1919Paramys compressidens Peterson p. 60
1930Ischyrotomus compressidens Hay
1940Ischyrotomus compressidens Wilson
1962Ischyrotomus compressidens Wood
1985Paramys compressidens Korth
1988Paramys compressidens Korth

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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
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—EuarchontogliresMurphy et al. 2001
—GliriformesWyss and Meng 1996
—Glires()
—Simplicidentata()
orderRodentiaBowdich 1821
familyIschyromyidaeAlston 1876
genusParamysLeidy 1871
speciescompressidens

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.

†Paramys compressidens Peterson 1919
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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: Lillegraven 1979, Nowak 1999, Carroll 1988, Ji et al. 2002, Hendy et al. 2009

Age range: base of the Uintan to the top of the Chadronian or 46.20000 to 33.90000 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Uintan46.2 - 39.7USA (Utah) Ischyrotomus compressidens (16654 222799) Paramys compressidens (type locality: 16607)
Uintan46.2 - 39.7USA (Wyoming) Paramys compressidens (16649)
Uintan46.2 - 39.7USA (California) Ischyrotomus compressidens (16786)
Chadronian37.2 - 33.9USA (Wyoming) Paramys compressidens (16960)