Which groups, besides tree squirrels, are encompassed by the family Sciuridae?

Answer

Ground squirrels, chipmunks, marmots, and flying squirrels

The family Sciuridae is extensive, containing a wide variety of related animals such as ground squirrels, chipmunks, marmots, and flying squirrels.

Which groups, besides tree squirrels, are encompassed by the family Sciuridae?
taxonomyanimalmammalclassificationsquirrel