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Uruguaytherium beaulieui

Mammalia - Astrapotheria - Astrapotheriidae

Discussion

Holotype: no number. Left mandibular ramus with the roots of p4 and m1, and the last two molars very well-preserved.

Locality: The specimen was found in Uruguay, department of Rio Negro. No stratigraphic or geological information is known for the specimen.

Etymology: in honor to Sra. Beaulieu, who gave the fossil to L. Kraglievich.

Taxonomy
Uruguaytherium beaulieui was named by Kraglievich (1928). It is a 3D body fossil. Its type locality is Santa Lucía Basin, which is in a Deseadan fluvial sandstone in the Fray Bentos Formation of Uruguay. It is the type species of Uruguaytherium.

Synonymy list
YearName and author
1928Uruguaytherium beaulieui Kraglievich

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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()
RankNameAuthor
infraorderCynodontia()
Mammaliamorpha
Mammaliaformes
classMammalia
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
AfrotheriaStanhope et al. 1998
Paenungulatomorpha
PaenungulataSimpson 1945
Sudamericungulata
orderAstrapotheria
familyAstrapotheriidaeAmeghino 1887
subfamilyUruguaytheriinae
genusUruguaytherium
speciesbeaulieui

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.

Uruguaytherium beaulieui Kraglievich 1928
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Diagnosis
ReferenceDiagnosis
L. Kraglievich 1928Lower molars lacking the perpendicular sulcus on the buccal side (Hypoflexid).
Measurements
partNmeanminimummaximummedians.d.
Mandible height295.986.0107.096.514.8
lower m2 height137.5----
lower m3 height134.0----

Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: scansorialsubc
Diet: herbivoreo
Reproduction: viviparoussubc
Created: 2009-01-05 17:11:22
Modified: 2009-01-05 19:11:22
Source: o = order, subc = subclass, c = class, subp = subphylum
References: Ji et al. 2002, Hendy et al. 2009, Lillegraven 1979, Carroll 1988, MacFadden et al. 1996

Age range: Deseadan or 29.00000 to 21.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Deseadan29.0 - 21.0Uruguay (Canelones) Uruguaytherium beaulieui (type locality: 176488)