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Miochinchilla plurinacionalis

Osteichthyes - Rodentia - Chinchillidae

Taxonomy
Miochinchilla plurinacionalis was named by Croft et al. (2021). Its type specimen is UATF-V-001911, a mandible (R dentary preserving the base of the incisor and p4-m3), and it is a 3D body fossil. Its type locality is Rio Rosario, which is in a Laventan fluvial claystone in Bolivia.

Synonymy list
YearName and author
2021Miochinchilla plurinacionalis Croft et al.

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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()
—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)
familyChinchillidaeBennett 1833
genusMiochinchilla
speciesplurinacionalis

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.

†Miochinchilla plurinacionalis Croft et al. 2021
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Diagnosis
ReferenceDiagnosis
D. A. Croft et al. 2021Differs from the only other member of the genus, M. surirense, in having cheek tooth laminae that are more oblique relative to the long axis of the toothrow, having molars that are narrower mesiodistally and wider in laminar diameter, and lacking the intralaminar transverse crests pre- sent in M. surirense.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: herbivoref
Reproduction: viviparoussubc
Created: 2005-06-08 10:11:09
Modified: 2005-08-26 13:31:06
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Carroll 1988, Nowak 1991, Lillegraven 1979, Ji et al. 2002, Hendy et al. 2009

Age range: base of the Langhian to the top of the Serravallian or 15.98000 to 11.63000 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Langhian15.98 - 13.82Bolivia (Potosí) Miochinchilla plurinacionalis (211381)
Serravallian13.82 - 11.63Bolivia (Tarija) Miochinchilla plurinacionalis (197502)
Laventan13.8 - 11.0Bolivia (Tarija) Miochinchilla plurinacionalis (38071 type locality: 133664)