mammal family - a family of mammals

Sciuromorpha, suborder Sciuromorpha - large more or less primitive rodents: squirrels; marmots; gophers; beavers; etc.

squirrel - a kind of arboreal rodent having a long bushy tail

genus Sciurus, Sciurus - type genus of the Sciuridae; typical moderate-sized arboreal squirrels

genus Tamiasciurus, Tamiasciurus - American red squirrels

Citellus, genus Citellus, genus Spermophilus, Spermophilus - typical ground squirrels

Cynomys, genus Cynomys - prairie dogs

genus Tamias, Tamias - chipmunks of eastern North America

Eutamias, genus Eutamias - chipmunks of western America and Asia

genus Glaucomys, Glaucomys - New World flying squirrels

genus Marmota, Marmota - marmots

Petauristidae, subfamily Petauristidae - Old World flying squirrels