PBDB Taxon

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

Perimys

Mammalia - Rodentia - Neoepiblemidae

Taxonomy

Perimys was named by Ameghino (1887). It is not extant. Its type is Perimys scalaris.

It was assigned to Eryomydae by Ameghino (1891); to Eryomyidae by Ameghino (1894); to Chinchillidae by McKenna and Bell (1997); to Chinchilloidea by Busker et al. (2020); and to Neoepiblemidae by Vucetich et al. (2010), Rasia and Candela (2018) and Vizcaíno et al. (2022).

Species

P. ameghinoi, P. dissimilis, P. erutus (syn. P. scalaris, P. angulatus, P. procerus, P. reflexus, P. diminutus, Sphodromys scalaris), P. impactus, P. incavatus, P. incurvus, P. intermedius, P. oemulus, P. onustus, P. pacificus, P. perpinguis, P. planaris, P. puellus, P. pueraster, P. scalabrinianus, P. transversus, P. zonatus

Synonyms

Sphiggomys was named by Ameghino (1887).

It was synonymized subjectively with Perimys by Ameghino (1894).

Synonymy list

Year	Name and author
1887	Perimys Ameghino
1887	Sphiggomys Ameghino
1891	Perimys Ameghino p. 15
1894	Perimys Ameghino p. 71
1997	Perimys McKenna and Bell
2010	Perimys Vucetich et al.
2018	Perimys Rasia and Candela
2020	Perimys Busker et al.
2022	Perimys Vizcaíno et al.

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
subclass	Synapsida
—	Therapsida	()
infraorder	Cynodontia	()
—	Mammaliamorpha
—	Mammaliaformes

Rank	Name	Author
class	Mammalia
—	Theriamorpha	(Rowe 1993)
—	Theriiformes	()
—	Trechnotheria
—	Cladotheria
—	Zatheria
subclass	Tribosphenida	()
subclass	Theria
—	Eutheria	()
—	Placentalia
—	Boreoeutheria
—	Euarchontoglires	Murphy et al. 2001
—	Gliriformes	Wyss and Meng 1996
—	Glires	()
—	Simplicidentata	()
order	Rodentia	Bowdich 1821
—	Ctenohystrica	Huchon et al. 2000
infraorder	Hystricognathi	(Tullberg 1899)
—	Caviomorpha	(Wood and Patterson 1955)
superfamily	Chinchilloidea	Bennett 1833
family	Neoepiblemidae	Kraglievich 1926
genus	Perimys	Ameghino 1887

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. †Perimys Ameghino 1887

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†Perimys ameghinoi Scott 1905

†Perimys dissimilis Ameghino 1902

†Perimys erutus Ameghino 1887

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Invalid names: Perimys angulatus Ameghino 1891 [synonym], Perimys diminutus Ameghino 1894 [synonym], Perimys procerus Ameghino 1889 [synonym], Perimys reflexus Ameghino 1894 [synonym], Perimys scalaris Ameghino 1891 [synonym], Sphodromys scalaris Ameghino 1887 [synonym]

†Perimys impactus Ameghino 1894

†Perimys incavatus Ameghino 1902

†Perimys incurvus Ameghino 1902

†Perimys intermedius Kramarz 2002

†Perimys oemulus Ameghino 1894

†Perimys onustus Ameghino 1887

†Perimys pacificus Ameghino 1894

†Perimys perpinguis Ameghino 1891

†Perimys planaris Ameghino 1891

†Perimys puellus Ameghino 1891

†Perimys pueraster Ameghino 1891

†Perimys scalabrinianus Ameghino 1889

†Perimys transversus Ameghino 1902

†Perimys zonatus Ameghino 1887

Invalid names: Sphiggomys Ameghino 1887 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

phosphaticsubp

Maximum body mass:

320 gg

Minimum body mass:

320 gg

Body mass estimate:

320 g

Body mass source:

publishedg

Environment:

terrestrialsubc

Locomotion:

actively mobilec

Life habit:

ground dwellingo

Diet:

herbivoreo

Reproduction:

viviparoussubc

Created:

2013-04-14 01:36:45

Modified:

2013-04-13 10:36:45

Source: g = genus, o = order, subc = subclass, c = class, subp = subphylum

References: Lillegraven 1979, Vizcaíno et al. 2010, Nowak 1999, Carroll 1988, Ji et al. 2002, Hendy et al. 2009

Age range: base of the Burdigalian to the top of the Huayquerian or 20.44000 to 5.00000 Ma

Collections (41 total)

Time interval	Ma	Country or state	Original ID and collection number
Colhuehuapian	21.0 - 17.5	Argentina (Neuquén)	P. sp. (89029)
Colhuehuapian	21.0 - 17.5	Argentina (Chubut)	P. dissimilis, P. transversus, P. incavatus (141368) Perimys indet. (176441) P. sp. (197191 232404) P. transversus, P. incavatus (27311)
Burdigalian	20.44 - 15.97	Chile (Magallanes)	P. incavatus (204203)
Burdigalian	20.44 - 15.97	Chile (Aisén)	P. n. sp., P. intermedius, P. erutus, P. procerus, P. scalaris, P. onustus, P. perpinguis, P. impactus (71843)
Burdigalian	20.44 - 15.97	Argentina (Santa Cruz)	P. intermedius (59133 59319 59320 59321 59322 59323 59325 59326)
Burdigalian - Langhian	20.44 - 13.82	Argentina (Santa Cruz)	P. sp. (197691)
Santacrucian	17.5 - 16.3	Argentina (Santa Cruz)	P. erutus (59333 59334 176599 176603 176641) P. erutus, P. impactus (176601) P. erutus, P. onustus, P. zonatus, P. incavatus (176593) P. perpinguis (207606) P. sp. (59332 142529 142533 176571 176623 176624 176625 206243 210154) P. sp., P. erutus (59324) P. sp., P. erutus, P. incavatus (210786) P. sp., P. erutus, P. onustus (210637 210638 210787)
Friasian	16.3 - 15.5	Chile (Aisén)	P. sp. (139845)
Huayquerian	8.0 - 5.0	Argentina (Entre Rios)	P. scalabrinianus (55600)