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Doryperimys

Mammalia - Rodentia - Neoepiblemidae

Discussion

Etymology. Dory, from the Greek spear, in relation to the spear-like cross section of the cheek teeth, and Perimys Ameghino, 1887a, an early Miocene chinchilloid. Diagnosis. Small neoepiblemid, size similar to adult speci- mens of Perimys incavatus Ameghino, 1902, with hypselo- dont, biprismatic cheek teeth (triprismatic in M3), with wide interprismatic cement. Differs from species of Perimys by having the following combination of characters: cheek teeth formed by comparatively broader prisms; labial apexes of the lower cheek tooth prisms much sharper (more lanceo- late occlusal contour); posterior prism of m1m2 much more extended lingually than the anterior one; lingual flexid more penetrating in m1 than in m3 (in contrast to species of Perimys); enamel remnant covering the labialmost portion of the anterior wall of the lower molars and the lingualmost portion of the posterior wall of the upper ones.

Taxonomy

Species

Synonymy list
YearName and author
2015Doryperimys Kramarz 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)
superfamilyChinchilloideaBennett 1833
familyNeoepiblemidaeKraglievich 1926
genusDoryperimys

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. †Doryperimys Kramarz et al. 2015
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Doryperimys olsacheri Kramarz et al. 2015
Diagnosis
ReferenceDiagnosis
A. G. Kramarz et al. 2015Small neoepiblemid, size similar to adult speci- mens of Perimys incavatus Ameghino, 1902, with hypselo- dont, biprismatic cheek teeth (triprismatic in M3), with wide interprismatic cement. Differs from species of Perimys by having the following combination of characters: cheek teeth formed by comparatively broader prisms; labial apexes of the lower cheek tooth prisms much sharper (more lanceo- late occlusal contour); posterior prism of m1–m2 much more extended lingually than the anterior one; lingual flexid more penetrating in m1 than in m3 (in contrast to species of Perimys); enamel remnant covering the labialmost portion of the anterior wall of the lower molars and the lingualmost portion of the posterior wall of the upper ones.
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, Carroll 1988, Lillegraven 1979, Nowak 1999

Age range: Colhuehuapian or 21.00000 to 17.50000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Colhuehuapian21.0 - 17.5Argentina (Neuquén) D. olsacheri (89027 89028 197284)