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

Metacaremys dimi

Osteichthyes - Rodentia - Octodontidae

Discussion

Diagnosis. Large species of Metacaremys with almost synchronous closure of lingual flexids. Bottom of the metaflexid straight and wider than in M. primitiva comb. nov. Average APL of m1 and m2 c. 15 longer than in M. calfucalel sp. nov. Average APL of m3 nearly 30 longer than in the latter species. Average AW of the lower molars between 20 and 30 wider than in M. calfucalel sp. nov. Value of the m3/m1 APL index >1.1. LSID. urn:lsid:zoobank.org:act:FFB8C17D-617C-40ED-8B657C07A26AFE4B

Taxonomy
Metacaremys dimi was named by Piñero et al. (2021). Its type specimen is MMH-GUA 20-01, a mandible (left mandibular fragment with intra-alveolar portion of incisor and dp4–m3), and it is a 3D body fossil. Its type locality is Laguna Guatraché, which is in a Huayquerian terrestrial horizon in the Cerro Azul Formation of Argentina.

Synonymy list
YearName and author
2021Metacaremys dimi Piñero et al. p. 1904 fig. 5Q–T

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)
superfamilyOctodontoideaWaterhouse 1839
familyOctodontidaeWaterhouse 1839
genusMetacaremys
speciesdimi

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.

†Metacaremys dimi Piñero et al. 2021
show all | hide all
Diagnosis
No diagnoses are available
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 13:40:07
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Nowak 1991, Carroll 1988, Ji et al. 2002, Lillegraven 1979

Age range: Huayquerian or 8.00000 to 5.00000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Huayquerian8.0 - 5.0Argentina (Buenos Aires) Metacaremys dimi (198862)
Huayquerian8.0 - 5.0Argentina (La Pampa) Metacaremys dimi (type locality: 204361)