 M. globiceps was discovered in 1936 and originally classified in its own genus , Neopropithecus . The name globiceps comes from its prominent forehead and derives from the Latin word globus , meaning " ball " , and the New Latin suffix -ceps , meaning " head " . Like M. pithecoides , it was a small to medium @-@ sized lemur , weighing approximately 11 kg ( 24 lb ) and having an intermembral index of 97 . It had the most narrow snout and gracile skeleton of the Mesopropithecus species , similar to but smaller than M. pithecoides , making it more like the living sifakas . Its teeth were similar to but larger than those of living sifakas , except for its lower premolars , which were shorter , and the M3 ( third upper molar ) , which was moderately constricted by the cheek and tongue . Its skull length averaged 94 mm ( 3 @.@ 7 in ) , ranging from 93 @.@ 4 to 94 @.@ 8 mm ( 3 @.@ 68 to 3 @.@ 73 in ) . It was a mixed feeder , eating fruit , leaves , and a moderate amount of seeds , having a diet similar to that of the living indri ( Indri indri ) . Although its forelimbs were more like those of living indriids , its hindlimbs and axial skeleton ( skull , spine , and ribs ) were more specialized for suspension , as in Palaeopropithecus and Babakotia . It was found in the south and west of Madagascar . Three samples of its subfossil remains have been radiocarbon dated , yielding dates of 354 – 60 BCE , 58 – 247 CE , and 245 – 429 CE . 
