Cramauchenia

Cramauchenia is an extinct genus of litoptern South American ungulate. Cramauchenia was named by Florentino Ameghino.[1] The name has no literal translation. Instead, it is an anagram of the name of a related genus Macrauchenia. This genus was initially discovered in the Sarmiento Formation in the Chubut Province, in Argentina, and later it was found in the Chichinales Formation in the Río Negro Province and the Cerro Bandera Formation in Neuquén, also in Argentina, in sediments assigned to the SALMA Colhuehuapian (in the Early Miocene).[2] In 1981 Soria made C. insolita a junior synonym of C. normalis.[3] A specimen of C. normalis was described in 2010 from Cabeza Blanca (Chubut, Argentina) in the Sarmiento Formation, in sediments assigned to the Deseadan SALMA (Upper Oligocene).[4]

Cramauchenia
Temporal range: Late Oligocene-Early Miocene (Deseadan-Colhuehuapian)
~23.0–17.5 Ma
Skull of Cramauchenia insolita in the Field Museum of Natural History
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: †Litopterna
Family: †Macraucheniidae
Genus: †Cramauchenia
Ameghino, 1902
Species:
†C. normalis
Binomial name
†Cramauchenia normalis
Ameghino, 1902
Synonyms
  • C. insolita

References
  1. Ameghino, F. 1902. Première contribution à la connaissance de la faune mammalogique des couches à Colpodon. Boletín de la Academia Nacional de Ciencias en Córdoba 17: 71-138.
  2. Kramarz Alejandro, Alberto Garrido, Analía Forasiepi, Mariano Bond & Claudia Tambussi. Estratigrafía y vertebrados (Aves y Mammalia) de la Formación Cerro Bandera, Mioceno Temprano de la Provincia del Neuquén, Argentina. Revista Geológica de Chile, Vol. 32, No. 2, p. 273-291, julio 2005. doi:10.4067/S0716-02082005000200006
  3. Soria,M. F. 1981. Los Litopterna del Colhuehuapense (Oligoceno tardío) de la Argentina. Revista del Museo Argentino de Ciencias Naturales “Bernardino Rivadavia.” Serie Paleontología 3:1–54.
  4. Dozo, M.T.; Vera, B. (2010). "First skull and associated postcranial bones of Macraucheniidae (Mammalia, Litopterna) from the Deseadan SALMA (late Oligocene) of Cabeza Blanca (Chubut, Argentina)". Journal of Vertebrate Paleontology. 30 (6): 1818–1826. doi:10.1080/02724634.2010.520781.


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