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Eumegamyinae

Mammalia - Rodentia - Dinomyidae

Synonymy list
YearName and author
1926Eumegamyinae Kraglievich p. 121
1956Eumegamyinae Paula Couto p. 97
1997Eumegamyinae McKenna and Bell p. 198

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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)
superfamilyChinchilloideaBennett 1833
familyDinomyidaePeters 1873
subfamilyEumegamyinaeKraglievich 1926
subfamilyEumegamyinaeKraglievich 1926

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.

Subfm. †Eumegamyinae Kraglievich 1926
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G. †Arazamys Rinderknecht et al. 2011
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†Arazamys castiglionii Rinderknecht et al. 2011
G. †Isostylomys Kraglievich 1926
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†Isostylomys laevis Rusconi 1945
†Isostylomys laurillardi Ameghino 1883
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Invalid names: Isostylomys intermedius Mones and Castiglioni 1979 [synonym], Isostylomys magnus Mones and Castiglioni 1979 [synonym]
G. †Tetrastylus Ameghino 1886
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†Tetrastylus angustidens Rusconi 1934
†Tetrastylus araucanus Ameghino 1904
†Tetrastylus atrophiatus Rovereto 1914
†Tetrastylus intermedius Rovereto 1914
†Tetrastylus laevigatus Ameghino 1886
†Tetrastylus montanus Ameghino 1891
Invalid names: Loxomylus Cope 1869 [synonym], Protelicomys Kraglievich 1931 [synonym], Tetrastylopsis Kraglievich 1931 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: frugivoref
Diet 2: folivoref
Reproduction: viviparoussubc
Created: 2005-06-08 10:11:09
Modified: 2005-08-26 13:32:01
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Carroll 1988, Lillegraven 1979, Ji et al. 2002, Nowak 1991

Age range: base of the Chasicoan to the top of the Pleistocene or 10.00000 to 0.01170 Ma

Collections (24 total)


Time interval Ma Country or state Original ID and collection number
Tortonian11.62 - 7.246Peru Eumegamyinae indet. (176133)
Tortonian11.62 - 7.246Brazil (Acre) Tetrastylus sp. (55602)
Late/Upper Miocene11.608 - 5.333Brazil Tetrastylus sp. (57989)
Late/Upper Miocene11.608 - 5.333Brazil (Acre) Tetrastylus sp. (134808)
Late/Upper Miocene11.608 - 5.333Venezuela (Falcon) Tetrastylus sp. (146431 146449)
Late/Upper Miocene11.608 - 5.333Uruguay (San Jose) Tetrastylus sp., Arazamys castiglionii, Isostylomys laurillardi (152542)
Chasicoan10.0 - 9.0Argentina (Buenos Aires) Tetrastylus sp. (79180)
Huayquerian8.0 - 5.0Argentina (La Pampa) Tetrastylus araucanus, Tetrastylus laevigatus (87198) Tetrastylus laevigatus (152065 152066 230751) Tetrastylus sp. (152061 152063)
Huayquerian8.0 - 5.0Argentina (Entre Rios) Tetrastylus aguilari, Tetrastylus diffusus, Tetrastylus robustus, Tetrastylus atavus, Isostylomys sp., Isostylomys ameghinoi, Isostylomys laurillardi, Tetrastylus laevigatus, Tetrastylus sp. (55600)
Huayquerian8.0 - 5.0Argentina (Catamarca) Tetrastylus sp. (157794) Tetrastylus sp., Tetrastylus intermedius (198543) Tetrastylus sp., Tetrastylus intermedius, Tetrastylus laevigatus (198546 198547)
Messinian7.246 - 5.333Argentina (La Pampa) Tetrastylus sp., Tetrastylus intermedius (141939)
Montehermosan5.0 - 3.8Uruguay (San José) Isostylomys intermedius (192107)
Montehermosan - Chapadmalalan5.0 - 3.0Argentina (Catamarca) Tetrastylus intermedius (157795)
Chapadmalalan4.0 - 3.0Argentina (Catamarca) Tetrastylus intermedius (205958)
Pleistocene (glacial)2.588 - 0.0117Brazil (Minas Gerais) Tetrastylus walteri (140474)