It includes tree squirrels , ground squirrels , chipmunks , the marmots ( which include woodchucks ) and also the Eurasian flying squirrels , but not the African scaly - tailed flying squirrels , which belong to the family Anomaluridae and are not sciurids at all .
It includes tree squirrels , ground squirrels , chipmunks , the marmots ( which include woodchucks ) , which together comprise the Sciurinae ; and also the Eurasian flying squirrels . 
 The African scaly - tailed flying squirrels , which belong to the family Anomaluridae and are not sciurids at all .