Caviodon

Caviodon is an extinct genus of Late Miocene to Late Pliocene (Chapadmalalan to Montehermosan in the SALMA classification) rodents, related to the modern guinea pig. Fossils of "Caviodon" have been found in the Ituzaingó, Monte Hermoso and Río Quinto Formations of Argentina, and the San Gregorio Formation of Venezuela.
Description.
A new species, "C. cuyano", was described from the Late Miocene to Late Pliocene (Chapadmalalan to Montehermosan) of Argentina by María Guiomar Vucetich, Cecilia M. Deschamps, Cecilia C. Morgan and Analía M. Forasiepi in 2011.