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Temporal range: Pleistocene? - Recent
Zyzomys pedunculatus.jpg
The Central Rock Rat (Zyzomys pedunculatus)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Superfamily: Muroidea
Family: Muridae
Subfamily: Murinae
Genus: Zyzomys
Thomas, 1909

Zyzomys argurus
Zyzomys maini
Zyzomys palatilis
Zyzomys pedunculatus
Zyzomys woodwardi

Zyzomys is a genus of rodents with unusually thick, long tails. Five species of the genus are known in Australia, where they are called rock rats or thick-tailed rats. They were discovered by Michael Rogers Oldfield Thomas in 1909.


There are five known species of rock-rat. The Central Rock Rat (Zyzomys pedunculatus) was once believed to be extinct until rediscovered in 1996.


  • 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.