 Mesopropithecus species appear to have been generally rare within their wide range . Collectively , the three species have been found in the north , south , west , and center of Madagascar , although they appear to have been geographically separated ( allopatric ) from each other . Subfossil discoveries indicate that they lived in the same region ( sympatric ) with other sloth lemurs in the north and center of Madagascar . The subfossil remains of M. globiceps have been found at seven subfossil sites on Madagascar : Anavoha , Ankazoabo @-@ Grotte , Belo sur Mer , Manombo @-@ Toliara , Taolambiby , <unk> , Tsirave . The subfossil remains of both M. pithecoides and M. dolichobrachion have only been found at one site each , Ampasambazimba and Ankarana respectively . 
