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Metacaremys calfucalel

Mammalia - Rodentia - Octodontidae

Discussion

Diagnosis. Medium-sized species of Metacaremys with slightly asynchronous closure of lingual flexids, the mesoflexid being more persistent. Bottom of metaflexid of m2 straight and wider than in M. primitiva comb. nov. Average APL of dp4m3 around 15 longer than in M. primitiva comb. nov. Average APL of m2 and m3 around 20 and 30 shorter, respectively, than in Metacaremys dimi sp. nov. Bottom of mesoflexus/fossette of the M1 slightly wider (mure anteroposteriorly longer) than in M. primitiva. Spur of the mesolophid absent in m12. LSID. urn:lsid:zoobank.org:act:EDE8E45C-E778-4646-854A08C5E09A52BB

Taxonomy
Metacaremys calfucalel was named by Piñero et al. (2021). Its type specimen is GHUNLPam 5039, a mandible (right mandibular fragment with dp4–m3), and it is a 3D body fossil. Its type locality is Estancia Don Mariano, which is in a Huayquerian terrestrial siltstone in the Cerro Azul Formation of Argentina.

Synonymy list
YearName and author
2021Metacaremys calfucalel Piñero et al. pp. 1901, 1902 fig. 5I–P

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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)
superfamilyOctodontoideaWaterhouse 1839
familyOctodontidaeWaterhouse 1839
genusMetacaremys
speciescalfucalel

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 calfucalel Piñero et al. 2021
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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: Ji et al. 2002, Lillegraven 1979, Hendy et al. 2009, Carroll 1988, Nowak 1991

Age range: base of the Huayquerian to the top of the Late/Upper Miocene or 8.00000 to 5.33300 Ma

Collections (8 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Miocene11.608 - 5.333Argentina (Mendoza) Metacaremys calfucalel (230710)
Huayquerian8.0 - 5.0Argentina (Mendoza) Metacaremys calfucalel (231327)
Huayquerian8.0 - 5.0Argentina (La Pampa) Metacaremys calfucalel (140925 151500 152061 type locality: 192135 204363 206031)