Taxa Count: 6

CYLINDRODONTIDAE

Cylindrodon Douglass, 1901

Cylindrodon fontis Douglass, 1902

Cylindrodon nebraskensis Hough & Alf, 1956

Prosciurus saskatchewaensis (Lambe, 1908)

Pseudocylindrodon Burke, 1935

Pseudocylindrodon neglectus Burke, 1935