 Although rare , the three species were widely distributed across the island yet allopatric to each other , with M. dolichobrachion in the north , M. pithecoides in the south and west , and M. globiceps in the center of the island . M. dolichobrachion was the most distinct of the three species due to its longer arms . Mesopropithecus was one of the smallest of the extinct subfossil lemurs , but was still slightly larger than the largest living lemurs . Known only from subfossil remains , it died out after the arrival of humans on the island , probably due to hunting pressure and habitat destruction . 
