Uruguaytherium

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Uruguaytherium
Temporal range: Late Oligocene-Early Miocene (Deseadan)
~29.0–21.0 Ma
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: †Astrapotheria
Family: †Astrapotheriidae
Subfamily: †Uruguaytheriinae
Genus: †Uruguaytherium
Kraglievich, 1928
Type species
Uruguaytherium beaulieui
Kraglievich, 1928

Uruguaytherium is an extinct genus of astrapotherid mammal from the Late Oligocene to Early Miocene of South America. It was named by the Argentinean paleontologist Lucas Kraglievich in 1928, from a fragmentary fossil found in the of the department of Río Negro in Uruguay, and the type species is U. beaulieui.[1] The related genera Xenastrapotherium and Granastrapotherium, which make up Uruguaytheriinae with Uruguaytherium, are also from South America, although them colonizated the equatorial zone.[2] The holotype specimen of Uruguaytherium is a partial mandible (the left mandibular ramus), with a preserved third molar, or M3.[3]

Phylogeny[]

Cladogram based in the phylogenetic analysis published by Vallejo-Pareja et al., 2015, showing the position of Uruguaytherium:[2]

 

 
 
 

Trigonostylops

 
 
 

 
 
 

Albertogaudrya

 
 
 

Scaglia

 
 
 

Astraponotus

 
 
 

Maddenia

 
 
 

Comahuetherium

 
 
 

Parastrapotherium

 
 
 

Astrapotherium

 
 

 
 
Uruguaytheriinae
 

Uruguaytherium

 
 
 
 

Hilarcotherium

 
 

Xenastrapotherium

 
 
 

Granastrapotherium

 
 
 
 
 
 
 
 
 
 
 
 

References[]

  1. ^ Uruguaytherium at Fossilworks.org
  2. ^ a b M. C. Vallejo-Pareja; J. D. Carrillo; J. W. Moreno-Bernal; M. Pardo-Jaramillo; D. F. Rodriguez-Gonzalez & J. Muñoz-Duran (2015). "Hilarcotherium castanedaii, gen. et sp. nov., a new Miocene astrapothere (Mammalia, Astrapotheriidae) from the Upper Magdalena Valley, Colombia" (PDF). Journal of Vertebrate Paleontology. Online edition (2): e903960. doi:10.1080/02724634.2014.903960.
  3. ^ Giollot, C; Antoine, P.O.; Tejada, J.; Pujos, F.; Salas Gismondi, R. (2011). "Middle Miocene Uruguaytheriinae (Mammalia, Astrapotheria) from Peruvian Amazonia and a review of the astrapotheriid fossil record in northern South America". Geodiversitas. 33 (2): 331–345. doi:10.5252/g2011n2a8.

Further reading[]

  • L. Kraglievich, 1928. "Sobre el supuesto Astrapotherium Christi Stehlin descubierto en Venezuela (Xenastrapotherium n. gen.) y sus relaciones con Astrapotherium magnum y Uruguaytherium beaulieui". p. 1-16



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