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Hypsosteiromys axiculus

Mammalia - Rodentia - Erethizontidae

Taxonomy
Steiromys axiculus was named by Ameghino (1902). Its type specimen is MACN A 52-171, a mandible (fragment of right ramus with root of i, m1-3), and it is a 3D body fossil. Its type locality is Gran Barranca - southern cliff of lake Colhué Huapí, which is in a Colhuehuapian terrestrial horizon in the Sarmiento Formation of Argentina.

It was recombined as Hypsosteiromys axiculus by Patterson (1958) and Vucetich et al. (2010).

Synonymy list
YearName and author
1902Steiromys axiculus Ameghino p. 111
1958Hypsosteiromys axiculus Patterson
2010Hypsosteiromys axiculus Vucetich et al.

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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)
superfamilyErethizontoideaBonaparte 1845
familyErethizontidaeBonaparte 1845
genusHypsosteiromys
speciesaxiculus()

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.

†Hypsosteiromys axiculus Ameghino 1902
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: arborealf
Diet: herbivoref
Reproduction: viviparoussubc
Created: 2005-06-08 10:11:09
Modified: 2005-08-26 13:29:34
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Carroll 1988, Lillegraven 1979, Ji et al. 2002, Nowak 1991, Hendy et al. 2009

Age range: Colhuehuapian or 21.00000 to 17.50000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Colhuehuapian21.0 - 17.5Argentina (Chubut) Hypsosteiromys axiculus (145897) Steiromys axiculus (141368)