Lagostominae is a subfamily of the family

Chinchillidae The family Chinchillidae is in the order Rodentia and consists of the chinchillas, the viscachas, and their fossil relatives. This family is restricted to southern and western South America, mostly living in mountainous regions of the Andes but ...

. It contains the genus ''

Lagostomus ''Lagostomus'' is a South American genus of rodents in the family Chinchillidae. It contains a single living species, the plains viscacha, and it is the only Holocene The Holocene ( ) is the current geological epoch. It began approximately ...

'' and two extinct genera, ''Prolagostomus'' and ''Pliolagostomus''.

References

{{Taxonbar, from=Q20760319 Chinchillidae