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Thylacosmilus atrox

Mammalia - Sparassodonta - Thylacosmilidae

Taxonomy
Thylacosmilus atrox was named by Riggs (1933). Its type specimen is P 14531, a partial skeleton (skull and parts of skeleton), and it is a 3D body fossil. Its type locality is Corral Quemado, which is in a Huayquerian/Montehermosan terrestrial horizon in the Corral Quemado Formation of Argentina. It is the type species of Thylacosmilus.

Synonyms
Synonymy list
YearName and author
1891Achlysictis lelongi Ameghino
1933Thylacosmilus atrox Riggs
1933Thylacosmilus lentis Riggs

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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
RankNameAuthor
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
subclassMetatheria()
—Marsupialiformes
orderSparassodonta()
familyThylacosmilidaeRiggs 1933
genusThylacosmilus
speciesatrox

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.

†Thylacosmilus atrox Riggs 1933
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Invalid names: Achlysictis lelongi Ameghino 1891 [synonym], Thylacosmilus lentis Riggs 1933 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubo
Locomotion: actively mobilec
Life habit: scansorialsubc
Diet: carnivoresubo
Reproduction: viviparoussubc
Created: 2013-05-24 23:51:13
Modified: 2013-05-24 08:51:13
Source: subo = suborder, subc = subclass, c = class, subp = subphylum
References: Carroll 1988, Lillegraven 1979, Clemens 1979, Hendy et al. 2009, Goin 1997

Age range: base of the Messinian to the top of the Chapadmalalan or 7.24600 to 3.00000 Ma

Collections (9 total)


Time interval Ma Country or state Original ID and collection number
Huayquerian8.0 - 5.0Argentina (La Pampa) Achlysictis lelongi (87198 151500)
Huayquerian8.0 - 5.0Argentina (Entre Rios) Achlysictis lelongi (55600)
Huayquerian - Montehermosan8.0 - 3.8Argentina (Catamarca) Thylacosmilus atrox, Thylacosmilus lentis (type locality: 206027) Thylacosmilus lentis (203948)
Messinian7.246 - 5.333Argentina (La Pampa) Achlysictis lelongi, Thylacosmilus atrox (140932)
Montehermosan5.0 - 3.8Argentina (Buenos Aires) Achlysictis lelongi (198863)
Chapadmalalan4.0 - 3.0Argentina (Buenos Aires) Thylacosmilus atrox (206598)
Late/Upper Pliocene3.6 - 2.588Argentina (Cordoba) Achlysictis lelongi (191133)