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Quadratomus

Mammalia - Rodentia - Ischyromyidae

Taxonomy
Quadratomus was named by Korth (1984). It is not extant.

It was assigned to Manitshinae by Korth (1984); to Ischyromyidae by McKenna and Bell (1997); and to Paramyini by Dunn and Rasmussen (2007).

Synonymy list
YearName and author
1984Quadratomus Korth
1997Quadratomus McKenna and Bell
2007Quadratomus Dunn and Rasmussen p. 988

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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
subfamilyParamyinaeSimpson 1945
tribeParamyiniSimpson 1945
genusQuadratomus

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.

G. †Quadratomus Korth 1984
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Quadratomus gigans Wood 1974
Quadratomus grandis Wood 1962
Quadratomus grossus Korth 1985
Quadratomus sundelli Eaton 1982
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: Hendy et al. 2009, Ji et al. 2002, Lillegraven 1979, Nowak 1999, Carroll 1988

Age range: base of the Bridgerian to the top of the Duchesnean or 50.30000 to 37.20000 Ma

Collections (17 total)


Time interval Ma Country or state Original ID and collection number
Bridgerian50.3 - 46.2USA (Wyoming) Leptotomus grandis (16100 16101 16102 16107 16111 16118 16129 16300) Pseudotomus robustus (16441 16443) Pseudotomus sundelli (16081 16137)
Bridgerian50.3 - 46.2USA (Colorado) Leptotomus grandis (16240 16241)
Duchesnean40.4 - 37.2USA (Texas) Leptotomus gigans (16822 16830 16851)