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Orthoarthrus mixtus

Mammalia

Taxonomy
Orthoarthrus mixtus was named by Ameghino (1904). Its type specimen is MLP 69-IX-5-16, a limb element (left astragalus), and it is a 3D body fossil. Its type locality is Santa Cruz Formation, which is in a Santacrucian terrestrial horizon in the Santa Cruz Formation of Argentina. It is the type species of Orthoarthrus.

Synonymy list
YearName and author
1904Orthoarthrus mixtus Ameghino p. 130

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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
RankNameAuthor
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Americatheria
—Xenarthra()
genusOrthoarthrus
speciesmixtus

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.

†Orthoarthrus mixtus Ameghino 1904
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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: omnivoreo
Reproduction: viviparoussubc
Created: 2005-08-26 13:20:40
Modified: 2005-08-26 15:20:40
Source: o = order, subc = subclass, c = class, subp = subphylum
References: Lillegraven 1979, Ji et al. 2002, Carroll 1988, Nowak 1999, Hendy et al. 2009

Age range: Santacrucian or 17.50000 to 16.30000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Santacrucian17.5 - 16.3Argentina (Santa Cruz) Orthoarthrus mixtus (type locality: 27313)