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Acarechimys constans

Mammalia - Rodentia

Taxonomy
Stichomys constans was named by Ameghino (1887) [from Arnal et al 2017: Type series. MACN-A 246, palatal fragment with left and right DP4-M2; MACN-A 247, left mandible with m1-2 and right mandible with dp4-m2; MLP 15-57, right mandible with m2-3 and broken m1; MLP 15-200, right mandible with dp4-m2; MLP 15-346, left mandible with dp4-m2; MLP 15-391, right mandible with dp4-m3; MLP 15-391a, right mandible with dp4-m2; MLP 15-391b, right mandible with m1-3; MLP 15-391c, left mandible with broken dp4-m1. Lectotype. MLP 15-391 Patterson (UMS, pers. comm.) and Pascual (1967). Paralectotypes. MACN-A 246, MACN-A 247, MLP 15-39, MLP 15-57, MLP 15-200, MLP 15-346, MLP 15-391a, MLP 15-391b, MLP 15-391c. Referred material. (Supplementary appendix 1).]. Its type specimen is MACN-A 246, 247, MLP 15-57, 15-200, 15-346, 15-391, 150391a, b, c and is a 3D body fossil.

It was recombined as Ameghinomys constans by Verzi et al. (2017); it was recombined as Acarechimys constans by Patterson and Pascual (1967), Arnal et al. (2017).

Sister species lacking formal opinion data
A. hunikuini

Synonymy list
YearName and author
1887Stichomys constans Ameghino
1894Stichomys constans Ameghino p. 70
1967Acarechimys constans Patterson and Pascual
2017Acarechimys constans Arnal et al. p. 315 figs. 4, 1-4
2017Ameghinomys constans Verzi et al.

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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
genusAcarechimysPatterson 1965
speciesconstans(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.

†Acarechimys constans Ameghino 1887
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingo
Diet: herbivoreo
Reproduction: viviparoussubc
Created: 2005-08-26 14:04:46
Modified: 2005-08-26 16:04:46
Source: o = order, subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Ji et al. 2002, Carroll 1988, Lillegraven 1979, Nowak 1999

Age range: Santacrucian or 17.50000 to 16.30000 Ma

Collections (9 total)


Time interval Ma Country or state Original ID and collection number
Burdigalian20.45 - 15.98Chile (Aisén) Acarechimys constans (71843)
Santacrucian17.5 - 16.3Argentina (Santa Cruz) Acarechimys constans (27313 142533 176570 210638) Ameghinomys constans (176564 176622) Stichomys constans, Acarechimys constans (176593)
Santacrucian17.5 - 16.3Argentina (San Juan) Ameghinomys constans (197900)