Siberian flying squirrel, Pteromys volans Marko Schrader via Wikicommons, Creative Commons Attribution ShareAlike.	Eastern gray squirrel, Sciurus carolinensis Rubund Creative Commons Attribution ShareAlike.
Red Squirrel, Sciurus vulgaris Rubund Creative Commons Attribution ShareAlike.

Taxonomy:

Gen. Aeretes (Add)

Aeretes melanopterus (Add)

Gen. Aeromys (Add)

Aeromys tephromelas (Add)
Aeromys thomasi (Add)

Gen. Belomys (Add)

Belomys pearsonii (Add)

Gen. Biswamoyopterus (Add)

Biswamoyopterus biswasi (Add)

Gen. Eoglaucomys (Add)

Eoglaucomys fimbriatus (Add)

Gen. Eupetaurus (Add)

Eupetaurus cinereus (Add)

Gen. Glaucomys (Add)

Glaucomys sabrinus (Add)
Glaucomys volans (Add)

Gen. Hylopetes (Add)

Hylopetes alboniger (Add)
Hylopetes baberi (Add)
Hylopetes bartelsi (Add)
Hylopetes fimbriatus (Add)
Hylopetes lepidus (Add)
Hylopetes nigripes (Add)
Hylopetes phayrei (Add)
Hylopetes sipora (Add)
Hylopetes spadiceus (Add)
Hylopetes winstoni (Add)

Gen. Iomys (Add)

Iomys horsfieldi (Add)
Iomys sipora (Add)

Gen. Petaurillus (Add)

Petaurillus emiliae (Add)
Petaurillus hosei (Add)
Petaurillus kinlochii (Add)

Gen. Petaurista (Add)

Petaurista alborufus (Add)
Petaurista elegans (Add)
Petaurista leucogenys (Add)
Petaurista magnificus (Add)
Petaurista nobilis (Add)
Petaurista petaurista (Add)
Petaurista philippensis (Add)
Petaurista xanthotis (Add)

Gen. Petinomys (Add)

Petinomys crinitus (Add)
Petinomys fuscocapillus (Add)
Petinomys genibarbis (Add)
Petinomys hageni (Add)
Petinomys lugens (Add)
Petinomys mindanensis (Add)
Petinomys sagitta (Add)
Petinomys setosus (Add)
Petinomys vordermanni (Add)

Gen. Pteromys (Add)

Pteromys momonga (Add)
Siberian flying squirrel, Pteromys volans

Gen. Pteromyscus (Add)

Pteromyscus pulverulentus (Add)

Gen. Trogopterus (Add)

Trogopterus xanthipes (Add)

Gen. Microsciurus (Add)

Microsciurus alfari (Add)
Microsciurus flaviventer (Add)
Microsciurus mimulus (Add)
Microsciurus santanderensis (Add)

Gen. Tufted Ground Squirrel, Rheithrosciurus (Add)

Rheithrosciurus macrotis (Add)

Gen. Sciurus

Abert's Squirrel, Sciurus aberti (Add)
Brazilian Squirrel, Sciurus aestuans (Add)
Allen's squirrel, Sciurus alleni (Add)
Caucasian Squirrel, Sciurus anomalus (Add)
Arizona gray squirrel, Sciurus arizonensis (Add)
Mexican Gray Squirrel, Sciurus aureogaster (Add)
Eastern gray squirrel, Sciurus carolinensis

Collie's Squirrel, Sciurus colliaei (Add)
Deppe's Squirrel, Sciurus deppei (Add)
Fiery Squirrel, Sciurus flammifer (Add)
Yellow-throated Squirrel, Sciurus gilvigularis (Add)
Red-tailed Squirrel, Sciurus granatensis (Add)
Western Gray Squirrel, Sciurus griseus (Add)
Bolivian Squirrel, Sciurus ignitus (Add)
Northern Amazon Red Squirrel, Sciurus igniventris (Add)
Japanese Squirrel, Sciurus lis (Add)
Mexican Fox Squirrel, Sciurus nayaritensis (Add)
Fox squirrel, Sciurus niger (Add)
Peters's Squirrel, Sciurus oculatus (Add)
Sciurus olsoni (Add)
Andean squirrel, Sciurus pucheranii (Add)
Junín Red Squirrel, Sciurus pyrrhinus (Add)
Richmond's Squirrel, Sciurus richmondi (Add)
Sanborn's Squirrel, Sciurus sanborni (Add)
Southern Amazon Red Squirrel, Sciurus spadiceus (Add)
Guayaquil Squirrel, Sciurus stramineus (Add)
Variegated Squirrel, Sciurus variegatoides (Add)
Red Squirrel, Sciurus vulgaris

Yucatan Squirrel, Sciurus yucatanensis (Add)

Gen. Syntheosciurus (Add)

Bangs's Mountain Squirrel, Syntheosciurus brochus (Add)

Gen. Pine squirrel, Tamiasciurus (Add)

Tamiasciurus douglasii (Add)
Tamiasciurus hudsonicus (Add)
Tamiasciurus mearnsi (Add)