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Dolichotis (mara)

Mammalia - Rodentia - Caviidae

Taxonomy
Dolichotis was named by Desmarest (1820). It is extant.

It was assigned to Dasyporcina by Gray (1825); and to Caviidae by Rovereto (1914), McKenna and Bell (1997) and Prado et al. (1998).

Synonymy list
YearName and author
1820Dolichotis Desmarest
1825Dolichotis Gray p. 341
1914Dolichotis Rovereto p. 58
1997Dolichotis McKenna and Bell
1998Dolichotis Prado et al. p. 795

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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)
superfamilyCavioideaFischer de Waldheim 1817
familyCaviidae
genusDolichotisDesmarest 1820

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. Dolichotis Desmarest 1820 [mara]
show all | hide all
†Dolichotis andina Rovereto 1914
†Dolichotis intermedia Ameghino 1889
†Dolichotis minuscula Ameghino 1908
Dolichotis patagonum Zimmermann 1780 [Patagonian mara]
†Dolichotis platycephala Ameghino 1889
†Dolichotis salinicola Burmeister 1876
Diagnosis
No diagnoses are available
Body mass estimates
estimateequationreference
 9.74 kg Mammalia femur diameterGingerich 1990
 8.17 kg Mammalia humerus diameterGingerich 1990
 8.56 kg Mammalia tibia diameterGingerich 1990
mean: 8.80 kg
Measurements
partNmean
femur diameter111.6
humerus diameter111.0
radius diameter17.00
tibia diameter110.5

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 13:33:05
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

Maximum range based only on fossils: base of the Huayquerian to the top of the Holocene or 8.00000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 5.0 Ma

Collections (19 total)


Time interval Ma Country or state Original ID and collection number
Huayquerian8.0 - 5.0Argentina (Catamarca) Dolichotis sp. (198546 198547)
Montehermosan5.0 - 3.8Argentina (Catamarca) Dolichotis sp. (198552)
Chapadmalalan4.0 - 3.0Argentina (Buenos Aires) Dolichotis minuscula (210710)
Chapadmalalan4.0 - 3.0Argentina (Córdoba) Dolichotis sp. (202212)
Late/Upper Pliocene3.6 - 2.588Argentina (Buenos Aires) Dolichotis salinicola (123527 199160) Dolichotis sp. (199155)
Piacenzian3.6 - 2.588Argentina (Córdoba) Dolichotis sp. (225604)
Early/Lower Pleistocene2.588 - 0.781Argentina (Buenos Aires) Dolichotis sp. (71304)
Pleistocene2.588 - 0.0117Argentina (Buenos Aires) Dolichotis sp. (212469)
Ensenadan1.75 - 0.4Argentina (Buenos Aires) Dolichotis sp. (213446)
Ensenadan - Lujanian1.75 - 0.012Argentina (Corrientes) Dolichotis sp. (71288)
Lujanian0.781 - 0.012Argentina (Buenos Aires) Dolichotis patagonum (71286 71303)
Lujanian0.781 - 0.012Uruguay Dolichotis sp. (71325)
Late/Upper Pleistocene0.129 - 0.0117Uruguay Dolichotis patagonum (211642)
Holocene0.0117 - 0.0Argentina Dolichotis patagonum (93267)
Holocene0.0117 - 0.0Argentina (La Pampa) Dolichotis sp. (212470)