Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Miochinchilla surirense

Osteichthyes - Rodentia - Chinchillidae

Taxonomy
Miochinchilla surirense was named by Croft et al. (2021). Its type specimen is SGOPV 4118, a partial skull (partial cranium preserving full maxillary dentition, disarticulated mandible in two pieces preserving full dentition except R incisor and Lm3, and associated bo), and it is a 3D body fossil. Its type locality is Chucal, which is in a Santacrucian floodplain sandstone in the Chucal Formation of Chile. It is the type species of Miochinchilla.

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

Is something missing? Join the Paleobiology Database and enter the data

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
speciessurirense

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 surirense Croft et al. 2021
show all | hide all
Diagnosis
ReferenceDiagnosis
D. A. Croft et al. 2021Differs from Miochinchilla plurinacionalis sp. nov. (described below) in having: a persistent transverse crest in each lamina, located distally and mesially in upper and lower teeth, respectively; more quadrangular molars (i.e., relatively longer mesiodistally than buccolingually), especially evident in m3; and molars that are wider mesio- distally and narrower in laminar diameter.
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: Ji et al. 2002, Carroll 1988, Nowak 1991, Lillegraven 1979, Hendy et al. 2009

Age range: Santacrucian or 17.50000 to 16.30000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Santacrucian17.5 - 16.3Chile Miochinchilla surirense (type locality: 103804)