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Heptaxodontidae

Mammalia - Rodentia - Heptaxodontidae

Taxonomy
Heptaxodontidae was named by Anthony (1917). It is extant.

It was assigned to Cavioidea by Paula Couto (1956); to Chinchilloidea by Wood (1958); and to Octodontoidea by Nowak (1999).

Synonymy list
YearName and author
1917Heptaxodontidae Anthony
1956Heptaxodontidae Paula Couto p. 97
1958Heptaxodontidae Wood p. 172
1999Heptaxodontidae Nowak

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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
familyHeptaxodontidaeAnthony 1917
familyHeptaxodontidaeAnthony 1917

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.

Fm. Heptaxodontidae Anthony 1917
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G. †Amblyrhiza Cope 1868
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†Amblyrhiza inundata Cope 1868
G. †Clidomys Anthony 1920
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†Clidomys osborni Anthony 1920
G. †Elasmodontomys Anthony 1916
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†Elasmodontomys obliquus Anthony 1916
G. †Quemisia Miller 1929
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†Quemisia gravis Miller 1929
G. †Xaymaca MacPhee and Flemming 2003
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†Xaymaca fulvopulvis MacPhee and Flemming 2003
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
Comments: life habit and diet based on Nowak 1999f
Created: 2005-08-26 11:47:39
Modified: 2005-08-26 13:47:39
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Ji et al. 2002, Carroll 1988, Lillegraven 1979, Nowak 1999

Age range: base of the Middle Pleistocene to the top of the Late/Upper Pleistocene or 0.77400 to 0.01170 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Pleistocene2.588 - 0.0117Puerto Rico Elasmodontomys obliquus (78300)
Middle Pleistocene0.774 - 0.129Jamaica (Saint Catherine) Clidomys osborni (235209 235212)
Middle Pleistocene0.774 - 0.129French Southern Territories (Antillas Francesas) Amblyrhiza inundata (235213)
Late/Upper Pleistocene0.129 - 0.0117Dominican Republic (Sanchez Ramirez) Quemisia gravis (235214)
Late/Upper Pleistocene - Holocene0.129 - 0.0Jamaica (Middlesex) Xaymaca fulvopulvis (235160)