is a genus of extinct rodent
in the Cricetidae
It contains only the species, Hopkins's Lemming
, Predicrostonyx hopkinsi
, which is considered one of the earliest examples of collared lemmings
- Musser, G. G. and M. D. Carleton. 2005. Superfamily Muroidea. Pp. 894-1531 in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore.