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Eusigmomys oppositus

Mammalia - Rodentia - Dinomyidae

Taxonomy
Eusigmomys oppositus was named by Ameghino (1904). It is not extant. Its type locality is Fenix River, which is in a Friasian terrestrial horizon in the Rio Frias Formation of Argentina.

Synonymy list
YearName and author
1904Eusigmomys oppositus Ameghino
1914Eusigmomys oppositus Rovereto p. 35

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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
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—EuarchontogliresMurphy et al. 2001
—GliriformesWyss and Meng 1996
—Glires()
—Simplicidentata()
orderRodentiaBowdich 1821
—CtenohystricaHuchon et al. 2000
infraorderHystricognathi(Tullberg 1899)
—Caviomorpha(Wood and Patterson 1955)
superfamilyChinchilloideaBennett 1833
familyDinomyidaePeters 1873
genusEusigmomysAmeghino 1905
speciesoppositusAmeghino 1904

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.

†Eusigmomys oppositus Ameghino 1904
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: frugivoref
Diet 2: folivoref
Reproduction: viviparoussubc
Created: 2005-06-08 10:11:09
Modified: 2005-08-26 13:32:01
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Lillegraven 1979, Carroll 1988, Ji et al. 2002, Hendy et al. 2009, Nowak 1991

Age range: Friasian or 16.30000 to 15.50000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Friasian16.3 - 15.5Argentina (Santa Cruz) Eusigmomys oppositus (type locality: 207565)