Children (12 direct children, 34 direct and indirect children):
Southern viscacha
(tree size 15)
Southern moutain viscacha
Northern viscacha
(tree size 7)
Northern mountain viscacha
Wolffsohn's viscacha
Wolffsohn’s mountain viscacha
Lagidium ahuacaense
Ecuadorean viscacha
Lagidium boxi
Lagidium famatinae
Lagidium lockwoodi
Lagidium moreni
Lagidium sarae
Lagidium tontalis
Lagidium viatorum
Lagidium vulcani