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

Xenorhinotherium

Mammalia - Ungulata - Macraucheniidae

Taxonomy
Xenorhinotherium was named by Cartelle and Lessa (1988) [Diagnosis: Similar in size to M. patachonica. Rostrum sharp and slightly recurved ventrally. External nares more caudal in position than in M. patachonica. Post-nasal fossae in frontal position, double, concave and with smooth surface. Basisphenoid wings ampular and fenestrate at the mesial facet. Palatine foramina in caudal position, localed at the level of upper M2. Palate with angular configuration, with oval rostral margin. Mandible with rostral region oval in shape. Mandibular symphisis starting at the level of the canines. Lower P4 larger in length than lower M1 and with entolophid; lower M1 and M2-3 lacking entolophid in a comparable way as in M. patachonica. Cervical, toracic and lumbar vertebrae similar to those in M. patachonica, but main body less robust. Apendicular skeleton similar to that of M. patachonica, but with alar process of the radius less marked and more gracile metapodial.]. Its type is Xenorhinotherium bahiense.

It was assigned to Macraucheniidae by Salles et al. (2006).

Synonymy list
YearName and author
1988Xenorhinotherium Cartelle and Lessa
2006Xenorhinotherium Salles et al. p. 8

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
RankNameAuthor
Amniota
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
subclassTribosphenida()
infraclassEutheria()
orderUngulata(Linnaeus 1766)
suborderLitopterna(Ameghino 1889)
familyMacraucheniidae
genusXenorhinotherium

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.

Diagnosis
No diagnoses are available