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Pseudotomus robustus

Osteichthyes - Rodentia - Ischyromyidae

Taxonomy
Paramys robustus was named by Marsh (1872). It is a 3D body fossil. Its type locality is Grizzly Buttes, which is in a Bridgerian terrestrial horizon in the Bridger Formation of Wyoming.

It was recombined as Ischyrotomus robustus by Peterson (1919), Hay (1930), Wilson (1940); it was recombined as Pseudotomus robustus by Matthew (1909), Simpson (1941), Wilson (1949), Wood (1962), Gazin (1976), Korth (1985), Dunn and Rasmussen (2007).

Synonyms
Synonymy list
YearName and author
1872Paramys robustus Marsh p. 218
1902Paramys robustus Hay p. 724
1909Pseudotomus robustus Matthew
1910Paramys robustus Matthew
1919Ischyrotomus robustus Peterson
1930Ischyrotomus robustus Hay
1940Ischyrotomus robustus Wilson
1941Pseudotomus robustus Simpson
1949Pseudotomus robustus Wilson
1962Ischyrotomus oweni Wood
1962Pseudotomus robustus Wood
1976Pseudotomus robustus Gazin
1985Pseudotomus robustus Korth
2007Pseudotomus robustus Dunn and Rasmussen p. 988

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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()
orderRodentiaBowdich 1821
familyIschyromyidaeAlston 1876
subfamilyParamyinaeSimpson 1945
tribeManitshiniSimpson
genusPseudotomus
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.

†Pseudotomus robustus Marsh 1872
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Invalid names: Ischyrotomus oweni Wood 1962 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingg
Diet: herbivoreo
Reproduction: viviparoussubc
Created: 2011-05-12 18:22:11
Modified: 2011-05-12 03:22:11
Source: g = genus, o = order, subc = subclass, c = class, subp = subphylum
References: Dunn and Rasmussen 2007, Lillegraven 1979, Carroll 1988, Hendy et al. 2009, Nowak 1999, Ji et al. 2002

Age range: Bridgerian or 51.10000 to 45.90000 Ma

Collections (12 total)


Time interval Ma Country or state Original ID and collection number
Bridgerian51.1 - 45.9USA (Wyoming) Ischyrotomus oweni (16448) Pseudotomus robustus (16137 16227 type locality: 16228 16289 16293) Pseudotomus sp. (16139 16203 16223 16443 16488 16489)