Archaeoindris
 Archaeoindris fontoynontii is an extinct giant lemur and the largest primate known to have evolved on Madagascar comparable in size to a male gorilla. It belonged to a family of extinct lemurs known as sloth lemurs (Palaeopropithecidae) and because of its extremely large size it has been compared to the ground sloths that once roamed North and South America. It was most closely related to Palaeopropithecus the second largest type of sloth lemur.